Facial impression adjustment method

Abstract

To provide a face impression evaluation method for adopting an objective an eyebrow-shaped index.SOLUTION: A face impression evaluation method for evaluating a face impression on the basis of a shape of a made-up eyebrow includes a shape specification step for specifying an eyebrow shape, and an impression confirmation step for confirming a face impression in each evaluation item. The shape specification step includes a first step for calculating a degree of separation between a first reference straight line α1 extending directly upward from the base of a nostril and a straight line respectively connecting the base and the inner corner of an eyebrow, a second step for calculating a degree of separation between a second reference straight line α2 connecting a corner of the mouth and an eye and a straight line respectively connecting the corner of the mouth and the eye, and a third step for calculating a degree of separation between a third reference straight line respectively connecting the respective lower ends of both left and right end parts in the eyebrow and a bottom edge of the eyebrow extending horizontally. In the impression confirmation step, at least one item is adopted as an evaluation item among evaluation items related to each arrangement or each size of the eyes, the nose and the mouth in the face and evaluation items related to the size or the aspect ratio of the face.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a method for evaluating the impression of a face based on the shape of a made-up eyebrow, a method for adjusting the impression of a face based on the shape of a made-up eyebrow, and a method for making up eyebrows.

Background Art

[0002] Conventionally, various evaluation methods for evaluating the appearance of a made-up face or the impression around the eyes have been known. For example, there is a method of quantifying the state of eyelashes and using the numerical value indicating the state of eyelashes as an index to evaluate the impression around the eyes.

[0003] As this type of evaluation method, for example, the unbiased variance V(θ) of the angle θ formed by the line segment BH connecting the base B and the tip H of the eyelashes and the horizontal line HL, which is calculated for the eyelashes in the side face images of a plurality of subjects, and / or the curl value S / Le obtained by dividing the area S of the region surrounded by the line segment BH connecting the base B and the tip H of the eyelashes and the line tracing from the base B to the tip H of the eyelashes by the length Le of the line tracing from the base B to the tip H of the eyelashes, are adopted as indices to evaluate the impression around the eyes (Patent Document 1, etc.).

[0004] According to the evaluation method described in Patent Document 1, the impression around the eyes can be evaluated using, as indices, the curl degree and the degree of variation of the eyelashes that are specified simply and accurately.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, methods for evaluating facial impressions based on eyebrow shapes that characterize facial impressions have not yet been fully studied. In particular, regarding facial impression evaluation methods that employ objective eyebrow shape indicators having a high correlation with specific impressions on the face, it cannot yet be said that they have been fully studied. Also, regarding facial impression adjustment methods that can adjust a face to a specific impression by employing objective indicators representing eyebrow shapes, it cannot yet be said that they have been fully studied.

[0007] Therefore, an object of the present invention is to provide a facial impression evaluation method that employs an objective eyebrow shape indicator having a high correlation with a specific impression on the face. Also, an object of the present invention is to provide a facial impression adjustment method that can adjust a face to a specific impression by utilizing an objective indicator representing the shape of eyebrows. Furthermore, an object of the present invention is to provide a makeup method for one's own eyebrows that can make the face appear to have a specific impression.

Means for Solving the Problems

[0008] The facial impression evaluation method according to the present invention is a facial impression evaluation method for evaluating a facial impression based on the shape of a made-up eyebrow, comprising: a shape identification step of identifying the shape of the eyebrow; and an impression confirmation step of confirming the facial impression with the identified eyebrow shape for each evaluation item. The shape identification step includes at least: a first step of setting a first reference straight line extending vertically upward from the roots of the small noses on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the root and the eyebrow head of the eyebrow and the first reference straight line; a second step of setting a second reference straight line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the corner of the mouth and the eyebrow tail of the eyebrow and the second reference straight line; A third reference line is set that connects the lower ends of the left and right ends of each of the eyebrows on both the left and right sides of the face, and a third step of obtaining the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference line is included. In the impression confirmation step, At least one item among the evaluation items related to the arrangement or size of each of the eyes, nose, and mouth on the face, and the evaluation items related to the size or aspect ratio of the face is adopted as the evaluation item.

[0009] The face impression adjustment method according to the present invention is a face impression adjustment method for adjusting the impression of a face based on the shape of a made-up eyebrow, An image preparation step of preparing at least two face images with the shape of the eyebrow changed, An impression confirmation step of visually confirming the impressions of the at least two prepared images, is included. The image preparation step includes A first reference line is set that extends straight up from the base of the small nose on both the left and right sides of the face, and a first changing step of changing the shape of the eyebrow by changing the degree of separation between the straight line connecting the base and the brow head of the eyebrow and the first reference line, and A second reference line is set that connects the mouth corners and the outer corners of the eyes on both the left and right sides of the face, and a second changing step of changing the shape of the eyebrow by changing the degree of separation between the straight line connecting the mouth corner and the brow tail of the eyebrow and the second reference line, A third reference line is set that connects the lower ends of the left and right ends of each of the eyebrows on both the left and right sides of the face, and the image preparation step includes at least one of a third changing step of changing the shape of the eyebrow by changing the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference line. In the impression confirmation step, Based on the face with the shape of the eyebrow changed by at least any one of the first changing step to the third changing step, the impression of the face is visually confirmed for each evaluation item related to the impression of the face.

[0010] The eyebrow makeup method according to the present invention includes at least A first step of attaching a first mark to the intersection of a first reference line extending straight up from the base of each of the nasolabial folds on both the left and right sides of the face and the lower end line of each of the inner corners of the left and right eyebrows; A second step of attaching a second mark to the intersection of a second reference line connecting the left and right corners of the mouth and the outer corners of the eyes on both the left and right sides of the face and the lower end line of each of the outer corners of the eyebrows in the natural eyebrows; A third step of setting a virtual line extending horizontally from the lower one of the first mark and the second mark to the other mark, and drawing a brow on at least the lower edge side of the skin between the lower edge of the natural eyebrow extending in the left - right direction and the virtual line.

Advantages of the Invention

[0011] In the face impression evaluation method of the present invention, there is a high correlation between the objective index representing the shape of the eyebrows and a specific impression on the face. Therefore, by shaping the eyebrows into a predetermined shape along the index, the face can be made to give a specific impression. According to the face impression adjustment method of the present invention, the face can be adjusted to a specific impression by using the objective index representing the shape of the eyebrows. According to the makeup method of the present invention, the face can be made to give a specific impression.

Brief Description of the Drawings

[0012]

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Mode for Carrying Out the Invention

[0013] An embodiment of the face impression evaluation method according to the present invention will be described below.

[0014] <Face Impression Evaluation Method (Method for Specifying Eyebrow Shape)> The face impression evaluation method of the present embodiment is a face impression evaluation method for evaluating the impression of a face based on the shape of the made-up eyebrows. The above face impression evaluation method includes a shape specifying step for specifying the shape of the eyebrows and an impression confirmation step for confirming the impression of the face with the specified eyebrow shape for each evaluation item. The shape specifying step includes at least Set a first reference line extending straight up from the base of each of the nasolabial folds on both the left and right sides of the face, and a first step of obtaining the degree of separation between the straight line connecting the base and the inner corner of each eyebrow and the first reference line; Set a second reference line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and a second step of obtaining the degree of separation between the straight line connecting the corners of the mouth and the outer ends of the eyebrows and the second reference line; Set a third reference line connecting the lower ends of the left and right ends of each of the left and right eyebrows on the face, and a third step of obtaining the degree of separation between the lower edge of the eyebrows extending in the left-right direction and the third reference line. Also, in the impression confirmation step, Evaluation items related to the arrangement or size of the eyes, nose, and mouth on the face, and At least one item among the evaluation items related to the size or aspect ratio of the face is adopted as the evaluation item for the impression of the face.

[0015] In the face impression evaluation method of the present embodiment, using each degree of separation from the first reference line, the second reference line, and the third reference line as an index, the shape of the made-up eyebrows can be specified by these indexes. These indexes closely related to the shape of the eyebrows have a high correlation with the specific impression among the impressions of the face described above. Specifically, it has a high correlation with specific impressions such as the impressions related to the arrangement or size of the eyes, nose, and mouth on the face, or the impressions related to the size or aspect ratio of the face. Therefore, it is because the above indexes of each degree of separation are adopted that such indexes greatly affect the specific impression among the impressions of the face. In other words, there is a high correlation between the objective indexes such as the shape of the eyebrows and the specific impressions on the face. Therefore, by setting each of the above degrees of separation within a predetermined range, the face can be made to give a specific impression.

[0016] Preferably, in the face impression evaluation method of the present embodiment, the shape specification step further includes A fourth step of obtaining the height from the lowermost end to the eyebrows based on the height from each of the corners of the mouth on both the left and right sides of the face to the lowermost end of the lower eyelid. Incidentally, the shape identification step may further include a fifth step of obtaining the ratio of the thickness of the eyebrow peak to the thickness of the inner corner of the eyebrow.

[0017] In the face impression evaluation method of the present embodiment, the order of performing the first to fourth steps in the above-described shape identification step is not particularly limited. Incidentally, hereinafter, when setting two first reference lines, two second reference lines, two third reference lines, etc. on both the left and right sides of the face, respectively, the state of setting them may be described while only illustrating one side, either the left or the right. The same applies hereinafter in this specification.

[0018] The performer of the above-described shape identification step may be oneself having a made-up eyebrow, or may be someone other than a person having a made-up eyebrow. The subject on which the above-described shape identification step is performed may be the face of a person having a made-up eyebrow, or may be an image in which the face of a person having a made-up eyebrow is depicted. Incidentally, it may also be an image in which the face of a person with a made-up eyebrow is illustrated.

[0019] In the first step, as shown in FIGS. 1 and 2, a first reference line α1 extending straight up from the base of the alae nasi on both the left and right sides of the face is set. The alae nasi is also referred to as the wing of the nose, and is the portion that bulges to both the left and right at the tip of the nose. The base of the alae nasi is the part on both the left and right where the nasal muscle, also referred to as the nasal dorsum, contacts the alae nasi. Also, in the first step, as shown in FIG. 2, a straight line connecting the base of the alae nasi and the inner corner of the made-up eyebrow (hereinafter, also referred to as the "inner corner line" β1) is set. More specifically, a straight line (inner corner line) connecting the base of the alae nasi and the tip of the inner corner of the eyebrow is set on both the left and right sides. The inner corner of the eyebrow is the part of each of the left and right eyebrows that is closest to the left-right center line of the face.

[0020] Next, in the first step, the degree of separation between the first reference straight line and the eyebrow line is determined. For example, the angle formed by the first reference straight line and the eyebrow line is determined. The smaller such an angle is, the smaller the degree of separation between the first reference straight line and the eyebrow line. Note that on each one side of the left and right of the face, usually, the eyebrow line is arranged closer to the ear side than the first reference straight line. The angle formed by the first reference straight line and the eyebrow line may be measured on an actual face with makeup on the eyebrows, or may be measured on an image of a face with makeup on the eyebrows.

[0021] In order to reduce the degree of separation between the first reference straight line and the eyebrow line (for example, the angle formed by the first reference straight line and the eyebrow line), the eyebrows are made up so that the tip of the eyebrow approaches the first reference straight line as close as possible.

[0022] In the second step, as shown in FIGS. 1 and 3, a second reference straight line α2 that connects the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face in the vertical direction is set. Specifically, a second reference straight line that connects the ends of the corners of the mouth on both the left and right sides and the outer corners of the eyes in the vertical direction is set. The corner of the mouth is the joint part of the upper lip and the lower lip. The outer corner of the eye is the end of the eye closer to the ear. Also, in the second step, as shown in FIG. 3, a straight line (hereinafter also referred to as the "outer eyebrow line" β2) that connects the corners of the mouth and the outer eyebrows of the made-up eyebrows on the left and right in the vertical direction is set. More specifically, a straight line (outer eyebrow line) that connects the end of the corner of the mouth and the tip of the outer eyebrow is set on both the left and right. The outer eyebrow is the part of each of the left and right eyebrows closest to the ear.

[0023] Next, in the second step, the angle formed by the second reference straight line and the outer eyebrow line is determined. The smaller such an angle is, the smaller the degree of separation between the second reference straight line and the outer eyebrow line. Note that on each one side of the left and right of the face, usually, the outer eyebrow line is arranged closer to the ear side than the second reference straight line. The angle formed by the second reference straight line and the outer eyebrow line may be measured on an actual face with makeup on the eyebrows, or may be measured on an image of a face with makeup on the eyebrows.

[0024] In order to reduce the degree of separation (for example, the angle formed by the second reference line and the eyebrow line) between the second reference line and the eyebrow line, the eyebrows are made up so that the tip of the eyebrow approaches the second reference line as closely as possible.

[0025] In the third step, as shown in FIGS. 1 and 4, a third reference line α3 is set that connects the lower ends of the left and right ends of each eyebrow on both the left and right sides of the face. Also, in the third step, the lower edge extending in the left-right direction of the made-up eyebrow is confirmed. Such a lower edge usually draws a curve that gently curves upward.

[0026] Next, in the third step, the degree of separation between the third reference line α3 and the lower edge of the eyebrow is obtained. To obtain such a degree of separation, for example, the distance (length) of the location where the third reference line α3 and the lower edge are farthest apart in a direction perpendicular to the third reference line α3 may be measured. Alternatively, to obtain the above-mentioned degree of separation, as shown in FIG. 4, a broken line β3 is set that connects the lower edge portion Y of the eyebrow (hereinafter also referred to as the lower end of the eyebrow peak, the most separated portion) where the third reference line α3 and the lower edge are farthest apart in a direction perpendicular to the third reference line α3, and the left and right ends of the lower edge of the eyebrow, and the angle of the most separated portion in such a broken line (hereinafter also referred to as the "eyebrow peak angle") may be measured. The larger such an angle (the closer it is to 180°), the smaller the degree of separation between the third reference line α3 and the lower edge of the eyebrow. Note that the lower edge of the eyebrow is usually arranged above the third reference line α3, but there may be a case where the lower edge of the eyebrow coincides with the third reference line α3.

[0027] In the fourth step, as shown in FIG. 5A, heights α4 are set from the corners of the mouth on both the left and right sides of the face to the lowermost end L of the lower eyelid. The lowermost end L of the lower eyelid is the lowermost position among the edges of the lower eyelid that draw a curve that gently curves downward. In the fourth step, as shown in FIGS. 5A and 5B, the height β4 (vertical distance) from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrow is determined. Specifically, the vertical distance β4 from the lowermost end L of the lower eyelid to the average height (mid-height) M between the lowermost end X of the eyebrow head at the eyebrow and the lowermost end Y of the eyebrow peak (a part of the lower edge where the lower edge and the third reference line are farthest apart in the direction perpendicular to the third reference line) is measured. Then, for example, the ratio of the height β4 from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrow to the height α4 from the corner of the mouth to the lowermost end L of the lower eyelid (β4 / α4, hereinafter also referred to as the "eyebrow height ratio") is calculated. The height β4 from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrow may be measured on the actual face with the eyebrows made up, or may be measured on an image of the face with the eyebrows made up.

[0028] In the fourth step, in order to more accurately determine the height of the eyebrow, the ratio of the height β4' of the upper edge of the eyebrow to the height β4 (vertical distance) from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrow (β4' / β4, hereinafter also referred to as the "upper edge height ratio of the eyebrow") may be obtained. Specifically, as shown in FIG. 5B, the upper edge D of the eyebrow head at the part closest to the nose at the eyebrow head is set. A straight line connecting such upper edge D of the eyebrow head and the tip E of the eyebrow tail is set, and the upper edge part of the eyebrow (eyebrow peak point F) farthest from such a straight line in the eyebrow peak part is set. The mid-height position N between the above upper edge D of the eyebrow head and the eyebrow peak point F is determined. The vertical distance between such mid-height position N and the average height M of the lower edge of the eyebrow described above is defined as the upper edge height β4' of the eyebrow.

[0029] The height from the lowermost end of the lower eyelid to the eyebrow can be appropriately adjusted according to the way of drawing the eyebrows during makeup.

[0030] In the fifth step, the thickness of the brow head and the thickness of the brow peak are measured respectively. Specifically, as shown in FIG. 6, the vertical distance between the upper edge D of the brow head described above and the lower edge X of the brow head at the portion closest to the nose at the brow head is set as the thickness of the brow head (β5). Further, the vertical distance between the above-mentioned brow peak point F and the lower end Y of the brow peak is set as the thickness of the brow peak β5'. As described above, the lower end Y of the brow peak is the portion where the lower end (lower contour) of the brow is farthest from the straight line connecting the lower end of the brow head and the lower end of the brow tail. Then, from the measured values of the thicknesses of the brow head and the brow peak set as described above, the ratio of the thickness of the brow peak to the thickness of the brow head ((β5' / β5, hereinafter also referred to as "brow peak thickness ratio") is obtained.

[0031] In the face impression evaluation method of the present embodiment, further, an impression confirmation step of confirming the face impression for each evaluation item is implemented.

[0032] In the impression confirmation step, for the face impression specified by the results of each of the first step, the second step, the third step, and further the fourth step implemented as necessary, etc., it is confirmed for each specific evaluation item related to the face impression. The impression confirmation step is usually implemented by sensory evaluation by visual inspection.

[0033] The implementer of the above impression confirmation step may be oneself having the made-up brow, or may be another person other than the person having the made-up brow. The subject for which the above impression confirmation step is implemented may be the face of a person having a made-up brow, or may be an image in which the face of a person having a made-up brow is reproduced. Note that it may also be an image in which the face of a person with a made-up brow is illustrated.

[0034] Specifically, in the impression confirmation step, evaluation items related to the arrangement or size of each of the eyes, nose, and mouth on the face, and at least one item of evaluation items related to the size or aspect ratio of the face is adopted as an evaluation item.

[0035] For example, as evaluation items related to the arrangement or size of eyes, nose, and mouth on the face, the following evaluation items can be cited. · "In the face, eyes, nose, mouth, etc. appear to be centered." · "Eyes, nose, mouth, etc. appear large or appear dark." · "The impression of the face is distinct." Also, as evaluation items related to the size or aspect ratio of the face, for example, the following evaluation items can be cited. · "The face appears small." · "The face appears narrow." · "The face appears tightened."

[0036] The exemplary contents of the above-mentioned specific evaluation items are all described as representing a "good" state. Based on the common sense that "In the face, eyes, nose, mouth, etc. appear to be centered." represents a good result, and "The face appears small." also represents a good result, the indicators (factors) for leading to good results will be explained below.

[0037] For example, regarding the above-mentioned degree of separation in the first step, the angle formed by the first reference line α1 and the inner corner line β1 is preferably 5.0° or less, more preferably 4.0° or less, and even more preferably 3.0° or less. When the angle formed by the first reference line and the inner corner line is at or below the predetermined angle as described above, the evaluation result of the above-mentioned specific evaluation item related to the impression of the face can be better.

[0038] For example, regarding the above-mentioned degree of separation in the second step, the angle formed by the second reference line α2 and the outer corner line β2 is preferably 4.0° or less, more preferably 3.0° or less, and even more preferably 1.5° or less. When the angle formed by the second reference line and the outer corner line is at or below the predetermined angle as described above, the evaluation result of the above-mentioned specific evaluation item related to the impression of the face can be better.

[0039] For example, regarding the degree of separation in the third step, the angle (eyebrow peak angle) of the most separated part on the broken line β3 described above is preferably 156.0° or more and 174.0° or less, and more preferably 160.5° or more and 169.5° or less. When the angle of the most separated part on the broken line described above is within the predetermined range as described above, the evaluation result of the specific evaluation item related to the impression of the face can be better. Note that the above angle may be approximately 180°. In other words, there may be no broken line as described above, and the lower edge of the eyebrow after makeup may be linear.

[0040] For example, the above-mentioned eyebrow height ratio (β4 / α4) in the fourth step is preferably 0.27 or more and 0.35 or less, and more preferably 0.29 or more and 0.33 or less. Also, the above-mentioned upper edge height ratio of the eyebrow (β4’ / β4) is preferably 0.30 or more and 0.50 or less, and more preferably 0.35 or more and 0.45 or less. When the above-mentioned eyebrow height ratio and the upper edge height ratio of the eyebrow are within the predetermined ranges as described above, the evaluation result of the specific evaluation item related to the impression of the face can be better.

[0041] For example, the above-mentioned thickness ratio of the eyebrow peak (β5’ / β5) in the fifth step is preferably 0.66 or more and 1.10 or less, and more preferably 0.77 or more and 0.99 or less. When the above-mentioned thickness ratio of the eyebrow peak is within the predetermined range as described above, the evaluation result of the specific evaluation item related to the impression of the face can be better.

[0042] The face impression evaluation method of this embodiment is used, for example, to widely publicize the theoretical technology when making up the eyebrows to give the face a specific impression.

[0043] Next, an embodiment of the face impression adjustment method according to the present invention will be described below.

[0044] <Face impression adjustment method for adjusting the face impression> The method for adjusting the impression of a face according to this embodiment is a method for adjusting the impression of a face based on the shape of a made-up eyebrow, and an image preparation step of preparing at least two face images with the shape of the eyebrow changed, and an impression confirmation step of visually confirming the impressions of the at least two prepared images. The image preparation step sets a first reference straight line extending straight up from the roots of the small noses on both the left and right sides of the face, and changes the shape of the eyebrow by changing the degree of separation between the straight line connecting the root and the eyebrow head of the eyebrow and the first reference straight line, and sets a second reference straight line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and changes the shape of the eyebrow by changing the degree of separation between the straight line connecting the corner of the mouth and the outer end of the eyebrow and the second reference straight line, sets a third reference straight line connecting the lower ends of the left and right ends of each of the left and right eyebrows on the face, and includes at least one of a third change step of changing the shape of the eyebrow by changing the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference straight line. Also, in the impression confirmation step, based on the face reflecting each change in the first change step to the third change step, the impression of the face is visually confirmed for each evaluation item related to the impression of the face.

[0045] The method for adjusting the impression of a face according to this embodiment may further include, as an image preparation step, a fourth change step of changing the shape of the eyebrow by changing the height from the lowermost end to the eyebrow based on the height from the corners of the mouth on both the left and right sides of the face to the lowermost end of the lower eyelid. In the fourth change step, the upper edge height of the eyebrow described above may be changed. Also, the method for adjusting the impression of a face according to this embodiment may further include, as an image preparation step, a fifth change step of changing the ratio of the thickness of the eyebrow peak to the thickness of the eyebrow head.

[0046] In the method for adjusting the impression of a face according to this embodiment, the same method as that adopted in the above-described method for evaluating the impression of a face can be adopted. The following description of the method for adjusting the impression of a face is the same as the content described in the above-described method for evaluating the impression of a face, unless otherwise specified.

[0047] In the image preparation step, a plurality of face images with different shapes of made-up eyebrows are prepared. The face images may be face photos after a person actually makes up their own eyebrows, or may be face illustrations with eyebrows, eyes, nose, mouth, etc. drawn.

[0048] In the image preparation step, at least one of the first modification step, the second modification step, the third modification step, the fourth modification step, and the fifth modification step is carried out. Any plurality of steps may be carried out, or all of the steps may be carried out. Note that the order of carrying out the above plurality of steps is not particularly limited.

[0049] For example, in the first modification step of the image preparation step, the above-described first reference straight line α1 is set. Then, face images are prepared in which a plurality of eyebrows with different angles formed between the first reference straight line α1 and the above-mentioned eyebrow head line β1 are respectively drawn. The angle formed between the first reference straight line α1 and the above-mentioned eyebrow head line β1 may be a predetermined value in the range of, for example, 0° or more and 10° or less.

[0050] For example, in the second modification step of the image preparation step, the above-described second reference straight line α2 is set. Then, face images are prepared in which a plurality of eyebrows with different angles formed between the second reference straight line α2 and the above-mentioned eyebrow end line β2 are respectively drawn. The angle formed between the second reference straight line α2 and the above-mentioned eyebrow end line β2 may be a predetermined value in the range of, for example, 0° or more and 10° or less.

[0051] For example, in the third modification step of the image preparation step, the above-described third reference straight line α3 is set. Then, face images are prepared in which a plurality of eyebrows with different angles (brow peak angles) at the most separated part in the above-described broken line β3 are respectively drawn. The brow peak angle in the above-described broken line β3 may be a predetermined value in the range of, for example, 140° or more and 180° or less.

[0052] For example, in the fourth modification step of the image preparation step, the height α4 from the corner of the mouth to the lowermost end L of the lower eyelid is set. Further, face images are prepared in which a plurality of eyebrows with different ratios (β4 / α4, eyebrow height ratio) of the height β4 from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrows with respect to the height α4 are respectively drawn. The above-mentioned eyebrow height ratio (β4 / α4) may be a predetermined value in the range of, for example, 0.2 or more and 0.4 or less.

[0053] For example, in the fourth modification step of the image preparation step, further, the upper edge height β4' of the above-mentioned eyebrow is set. Further, face images are prepared in which a plurality of eyebrows with different ratios (β4' / β4, upper edge height ratio of the eyebrow) of the upper edge height β4' of the eyebrow to the height β4 (vertical distance) from the lowermost end L of the lower eyelid to the average height M of the lower edge of the eyebrows are respectively drawn. Such an upper edge height ratio of the eyebrow may be a predetermined value in the range of, for example, 0.3 or more and 0.5 or less.

[0054] For example, in the fifth modification step of the image preparation step, the thickness β5 of the eyebrow head and the thickness β5' of the eyebrow peak described above are set. Further, face images are prepared in which a plurality of eyebrows with different ratios (β5' / β5, thickness ratio of the eyebrow peak) of the thickness β5' of the eyebrow peak to the thickness β5 of the eyebrow head are respectively drawn. Such a thickness ratio of the eyebrow peak may be a predetermined value in the range of, for example, 0.6 or more and 1.2 or less.

[0055] In the image preparation step, a face image obtained by photographing an actually made-up face may be prepared, a face image such as an illustration created by hand may be prepared, or a face image processed by image processing using computer software or the like may be prepared. In the image preparation step, all of the first to fourth modification steps may be carried out to prepare a large number of images of faces having various-shaped eyebrows.

[0056] In this embodiment, in the impression confirmation step, visually confirm the impression of the face that reflects the change in at least one of the first to third change steps. Further, the change in the fourth change step or the change in the fifth change step may be reflected on the face. In the impression confirmation step, the person himself / herself may confirm the impression of his / her own face, or another person may confirm it. Also, one person may confirm the impression of the face, or multiple people may each confirm it. Further, the impression of one face may be confirmed, or the impressions of multiple faces may each be confirmed. Note that you may directly visually confirm the face of a person with makeup on the eyebrows, or you may confirm it by looking at the face image of the person.

[0057] In the impression confirmation step, visually confirm the impression of the face for each evaluation item related to the impression of the face. Examples of the evaluation items include the items exemplified as above.

[0058] According to the face impression adjustment method of this embodiment, by repeating the above image preparation step and the above impression confirmation step, and setting the eyebrows of a specific shape using an objective index, a face having such specific-shaped eyebrows can give a specific impression.

[0059] Specifically, the makeup eyebrows can be specified to a predetermined shape so that the face can give the following impressions. · The arrangement or size of each of the eyes, nose, and mouth on the face gives a preferable impression. · The size or aspect ratio of the face gives a preferable impression. More specifically, the makeup eyebrows can be specified to a predetermined shape so that the face can give the following impressions. · "In the face, the eyes, nose, mouth, etc. appear to be centered." · "The eyes, nose, mouth, etc. appear large or appear thick." · "The face appears small." · "The face appears thin."

[0060] In order for the face to have the impression as described above, for example, in the face impression evaluation method described above, the preferable angle formed by the first reference line and the above-mentioned eyebrow head line, the preferable angle formed by the second reference line and the above-mentioned eyebrow tail line, the preferable angle of the most separated part in the above-mentioned broken line, or the above-mentioned preferable "eyebrow height ratio" or the above-mentioned preferable "upper edge height ratio of the eyebrow" is set, and the made-up eyebrow shape is set accordingly.

[0061] When repeating the above image preparation process, it takes a long time to perform eyebrow makeup as in the above first to third modification processes on the face of an actual person. Therefore, in terms of being able to repeat the image preparation process in a short time, it is preferable to change the eyebrow shape in a digital face image (photo or illustration) by image processing using software.

[0062] The face impression adjustment method of the present embodiment is used, for example, in the makeup consultant business. Specifically, it is used for applications such as makeup counseling related to eyebrow makeup.

[0063] Subsequently, an embodiment of the eyebrow makeup method according to the present invention will be described below.

[0064] <Eyebrow Makeup Method> The eyebrow makeup method (makeup method for natural eyebrows) of the present embodiment includes at least a first step of attaching a first mark to the intersection part between the first reference line extending straight up from the base of the small nose on both the left and right sides of the face and the lower end line of each eyebrow head in the left and right natural eyebrows; a second step of attaching a second mark to the intersection part between the second reference line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face and the lower end line of each eyebrow tail in the natural eyebrows; a third step of setting a virtual straight line extending horizontally from the lower of the first mark and the second mark to the other mark, and drawing an eyebrow at least on the lower edge side of the skin between the lower edge of the natural eyebrows extending in the left and right directions and the virtual straight line.

[0065] The eyebrow makeup method of this embodiment preferably further includes a fourth step of determining the height position from the lowermost end to the lower edge of the eyebrow based on the height of each side from the corners of the mouth on both the left and right sides to the lowermost end of the lower eyelid on the face. In the fourth step, the position of the upper end of the eyebrow may be determined by setting the above-mentioned "upper edge height ratio of the eyebrow". The eyebrow makeup method of this embodiment may include, for example, a fifth step of determining the above-mentioned "thickness ratio of the peak of the eyebrow" (the ratio of the thickness of the peak of the eyebrow to the thickness of the beginning of the eyebrow). In the eyebrow makeup method of this embodiment, the eyebrow can be drawn so that the position determined as described above forms the contour. Note that the fourth step and the fifth step can be implemented in accordance with the methods described for the above-mentioned fourth step and fifth step, respectively.

[0066] The first reference line, the second reference line, etc. in the eyebrow makeup method of this embodiment are as described above. Note that the natural eyebrow may be in the shape of a curved rod that gently curves upward, a bent rod shape with a part bent upward, or a straight rod shape. Therefore, the lower edge of the natural eyebrow extending in the left-right direction may be a curve that gently curves upward, a broken line shape that bends halfway upward, or a straight line shape. Also, the natural eyebrow may have a shape where the beginning of the eyebrow is higher than the end of the eyebrow, or a shape where the beginning of the eyebrow is lower than the end of the eyebrow.

[0067] In the first step, a first mark is made at the intersection of the first reference line and the lower end line of each beginning of the natural eyebrow. For example, a first mark is made as a mark using a general makeup preparation having a beige color such as a concealer. The first mark is made, for example, by drawing a short line in a direction perpendicular to the longitudinal direction of the natural eyebrow as shown by I in (a) of FIG. 7A. Note that the above-mentioned "lower end line" includes both the lower end line of the natural eyebrow itself and a virtual lower end line that extends protruding in the left-right direction from the lower end line of the natural eyebrow itself. The same applies to the "lower end line" in the following second step.

[0068] In the second step, a second mark is made at the intersection of the second reference line and the lower end line of each eyebrow peak of the natural eyebrow. For example, a second mark is made as a marking with a general makeup preparation having a beige color as described above. The second mark is made, for example, as shown by II in (b) of FIG. 7A, by drawing a short line in a direction perpendicular to the longitudinal direction of the natural eyebrow.

[0069] In the third step, first, a virtual straight line is set horizontally from the mark with the lower height position to the mark with the higher height position among the first mark and the second mark. Note that the virtual straight line may overlap with the third reference line described above. Preferably, a linear mark is made with a makeup preparation as described above so as to overlap with the above virtual straight line. For example, as shown by III in (c) of FIG. 7A, a line may be drawn as a marking with a general makeup preparation having a beige color as described above. The linear marking is drawn horizontally from the one with the lower height among the first mark and the second mark to the other. For example, if the first mark is lower, the linear marking is drawn from the first mark to the second mark, and if the second mark is lower, it is drawn from the second mark to the first mark.

[0070] In the third step, next, an eyebrow is drawn on at least a part (the lower edge side) between the above virtual straight line and the lower edge of the natural eyebrow (the lower contour line of the natural eyebrow extending in the left - right direction). For example, as shown in (d) and (e) of FIG. 7B, the upper half (or all) of the skin between the linear mark overlapping with the above virtual straight line and the lower edge of the natural eyebrow may be painted with an eyebrow pencil or the like. As shown in (e) and (f) of FIG. 7B, the lower edge of the drawn eyebrow may be slightly blurred with an eyebrow powder or the like. Further, a beige - based makeup preparation may be blended into the skin with a brush or the like so as not to make the linear mark between the first mark and the second mark conspicuous.

[0071] In the third step, it is preferable to draw (make up) the eyebrow so that the angle of the most separated part in the above - mentioned broken line is within a predetermined range. On the other hand, in terms of simply completing the makeup, an eyebrow may be drawn over all of the area between the above virtual straight line and the lower edge of the natural eyebrow.

[0072] In the fourth step, the height position of the made-up eyebrows can be determined. Specifically, positions such as the upper edge (upper line) or the lower edge (lower line) extending in the left-right direction of the made-up eyebrows can be determined. Specifically, based on the above-mentioned "eyebrow height ratio" (the ratio of the height from the lowermost end of the lower eyelid to the average height of the lower edge of the eyebrows), and the above-mentioned "upper edge height ratio of the eyebrows", etc., the position of the eyebrows can be determined. The upper edge and the lower edge of the eyebrows may each be substantially linear extending in the left-right direction, or may be a curved shape slightly protruding (curved) upward.

[0073] In the fifth step, the thickness of the brow head and the thickness of the brow peak can be determined. Specifically, based on the above-mentioned "brow peak thickness ratio" (the ratio of the thickness of the brow peak to the thickness of the brow head), etc., the thickness of the brow head, the thickness of the brow peak, and the "brow peak thickness ratio", etc., can be determined.

[0074] The method for making up eyebrows in this embodiment is used, for example, when a beauty staff member performs eyebrow makeup on a customer's face as a profession. Note that you yourself may perform the above-mentioned makeup method for making up the eyebrows on your own face. In other words, the above-mentioned makeup method may be performed on one's own face by oneself, or may be performed by an operator on the face of the person to be treated.

[0075] As the makeup preparation used for the above-mentioned makeup, general products are used. For example, an eyebrow pencil, an eyebrow powder, an eyebrow liquid, or an eyebrow mascara, etc. are used.

[0076] When performing eyebrow makeup, an applicator such as a makeup brush can be used, for example. Note that the makeup preparation may be applied with fingers. The object to which the makeup preparation is applied is the natural eyebrows and the skin around the natural eyebrows, etc.

[0077] According to the eyebrow makeup method of this embodiment, since the natural eyebrows can be made up based on the first reference straight line, the second reference straight line, and the above-mentioned virtual straight line, etc., it can be implemented relatively simply. Moreover, by making up the natural eyebrows, the face can be made closer to a good impression as described in the above-mentioned face impression evaluation method. Therefore, the face can be made to show a specific impression.

[0078] The eyebrow makeup method of this embodiment can be implemented non-therapeutically for the cosmetic purpose of improving the appearance of the face. Examples of cosmetic purposes include, for example, the purpose of looking youthful or the purpose of making the face look smaller. Specifically, it can be implemented for the following purposes. · "Make it look as if the eyes, nose, mouth, etc. are centered on the face." · "Make the eyes, nose, mouth, etc. look larger or darker." · "Make the face look smaller." · "Make the face look thinner."

[0079] The above-mentioned face impression evaluation method, face impression adjustment method, and eyebrow makeup method are suitably applied to the faces of, for example, middle-aged and older women or men whose aging has advanced. On the other hand, they may also be applied to the faces of young women or men in their early 30s or 20s.

[0080] Here, a generally known conventional eyebrow makeup method will be described. For example, a general technique of drawing eyebrows so as to connect the following three parts is known. · The intersection part between the straight line connecting both ends of the small nose and the inner corners of the left and right eyes and the natural eyebrows · A slightly inner part from the intersection of the straight line connecting both ends of the small nose and the outer corners of the left and right eyes and the natural eyebrows · The intersection part (the peak part of the eyebrows) between the straight line drawn upward from the ear-side edges of the left and right black eyes and the natural eyebrows Schematic diagrams showing such a technique are shown in each of (I) of FIGS. 8A and 8B.

[0081] In addition, for women who are particularly aging, the following methods are also known as conventional general eyebrow makeup methods. Specifically, there is a method in which, after applying makeup to make the aging - looking parts look youthful, the above - mentioned general method is applied. In such a method, in order to make it look as if each of the left and right eyes that have moved to the side of the ears with the progress of aging has returned inward, nose shadow is applied. In order to make it look as if the left and right upper eyelids that have moved to the side and downward with the progress of aging have returned inward and upward, for example, eyeshadow and eyeliner are applied along the edges of the upper eyelids. In order to make it look as if the left and right outer - corner parts of the eyes that have moved downward with the progress of aging have been lifted, for example, mascara is applied near the outer - corner of the upper eyelid.

[0082] Generally, it is known that the face changes as people age. Specifically, it is known that not only does the skin sag, but also the skeleton (skull) that forms the face changes with aging. Specifically, the temporal part of the skull caves inward, and accordingly, a depression forms in the forehead. Also, the eye socket (the hollow that houses the eyeball) expands outward and downward, and accordingly, the eyes also move in the same way. Also, the pyriform aperture (the entrance of the nasal cavity) expands in the left - right direction, and accordingly, the nose also widens. Also, the protrusion of the chin part decreases or shortens, and accordingly, excess skin appears around the chin, causing sagging in the facial line. In addition, the frontal part caves inward, and the upper jaw caves inward. When the skeleton changes in this way and the eyes, nose, mouth, etc. move accordingly, for example, the positions of the eyes, nose, and mouth in one's 20s are different from the positions of the eyes, nose, and mouth after aging. Therefore, even if the above - mentioned general eyebrow makeup method is applied to the face after aging, it is difficult to achieve the intended finish. For example, the face may look larger after makeup. Therefore, as described above, there may be cases where, after applying makeup to make the aging - looking parts look youthful, the above - mentioned general makeup method is further applied. However, such a makeup method is very complicated and not necessarily preferable as a daily eyebrow makeup method.

[0083] In contrast, in the makeup method of the present embodiment, as schematically shown in each (II) of FIGS. 8A and 8B, the natural eyebrows are made up as described above based on the first reference straight line, the second reference straight line, and the above-mentioned virtual straight line. Specifically, the natural eyebrows are made up in accordance with the above-mentioned first step (S1), second step (S2), third step (S3), and further steps as necessary. The shapes of natural eyebrows vary due to individual differences. For example, in some cases, the lower end of the eyebrow tail may be lower than the lower end of the eyebrow head, and in other cases, the lower end of the eyebrow tail may be higher than the lower end of the eyebrow head. The makeup method of the present embodiment is a relatively simple makeup method, which can be easily performed and can be finished into natural eyebrows. In particular, by making a linear mark in the horizontal direction so as to overlap the above-mentioned virtual straight line, it becomes easier to draw the eyebrows. The makeup method of the present embodiment can be relatively easily implemented for natural eyebrows of various shapes as described above.

[0084] The matters disclosed by this specification include the following. (1) A method for evaluating the impression of a face based on the shape of the made-up eyebrows, a shape specifying step of specifying the shape of the eyebrows, and an impression confirming step of confirming the impression of the face with the shape of the eyebrows specified for each evaluation item, wherein the shape specifying step includes at least a first step of setting a first reference straight line extending vertically upward from the roots of the small noses on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the roots and the eyebrow head of the eyebrows and the first reference straight line, a second step of setting a second reference straight line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the corners of the mouth and the eyebrow tail of the eyebrows and the second reference straight line, A third reference line is set that connects the lower ends of the left and right ends of each of the eyebrows on both the left and right sides of the face, and a third step of obtaining the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference line is included. In the impression confirmation step, Evaluation items related to the arrangement or size of each of the eyes, nose, and mouth on the face, and Among the evaluation items related to the size or aspect ratio of the face, at least one item is adopted as the evaluation item. (2) A method for adjusting the impression of a face based on the shape of a made-up eyebrow, comprising: An image preparation step of preparing at least two images of the face with the shape of the eyebrow changed; An impression confirmation step of visually confirming the impressions of the at least two prepared images, The image preparation step includes: Setting a first reference line that extends straight up from the base of the small nose on both the left and right sides of the face, and a first changing step of changing the shape of the eyebrow by changing the degree of separation between the straight line connecting the base and the brow head of the eyebrow and the first reference line; and Setting a second reference line that connects the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and a second changing step of changing the shape of the eyebrow by changing the degree of separation between the straight line connecting the corners of the mouth and the brow tail of the eyebrow and the second reference line; Setting a third reference line that connects the lower ends of the left and right ends of each of the eyebrows on both the left and right sides of the face, and including at least one of a third changing step of changing the shape of the eyebrow by changing the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference line; In the impression confirmation step, A method for adjusting the impression of a face, in which the impression of the face is visually confirmed for each evaluation item related to the impression of the face based on the face in which the shape of the eyebrow is changed by at least any one of the first changing step to the third changing step. (3) An eyebrow makeup method, at least A first step of attaching a first mark at the intersection of a first reference line extending straight up from the base of each of the wings of the nose on both the left and right sides of the face and the lower end line of each of the inner corners of the left and right eyebrows; A second step of attaching a second mark at the intersection of a second reference line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face and the lower end line of each of the outer corners of the inner eyebrows; A third step of setting a virtual line extending horizontally from the lower one of the first mark and the second mark towards the other mark, and drawing eyebrows at least on the lower edge side of the skin between the lower edge of the inner eyebrows extending in the left - right direction and the virtual line. A makeup method comprising these steps. (4) In the third step, a linear mark is made so as to overlap the virtual line, and the makeup method according to (3) above, wherein eyebrows are drawn on the skin between the linear mark and the lower end of the inner eyebrows. (5) A method for specifying the shape of eyebrows for specifying the shape of the made - up eyebrows, comprising at least: A first step of setting a first reference line extending straight up from the base of each of the wings of the nose on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the base and the inner corner of the eyebrow and the first reference line; A second step of setting a second reference line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face, and obtaining the degree of separation between the straight line connecting the corner of the mouth and the outer corner of the eyebrow and the second reference line; A third step of setting a third reference line connecting the lower ends of the left and right ends of each of the left and right eyebrows on both the left and right sides of the face, and obtaining the degree of separation between the lower edge of the eyebrow extending in the left - right direction and the third reference line; A method for specifying the shape of eyebrows, including these steps. According to such a method for specifying the eyebrow shape, by using the degree of separation from each of the first reference line, the second reference line, and the third reference line as an index, the shape of the made-up eyebrow can be specified to a certain extent based on these indices. These indices that are closely related to the eyebrow shape have a high correlation with a specific impression among the impressions of the face. Specifically, they have a high correlation with specific impressions such as the impressions related to the arrangement or size of the eyes, nose, and mouth on the face, or the impressions related to the size or aspect ratio of the face. Therefore, it is because the above-mentioned indices of the degree of separation are adopted that such indices greatly affect a specific impression among the impressions of the face. Therefore, by setting each of the above-mentioned degrees of separation, which are objective indices representing the eyebrow shape, within a specific range, the face can be made to give a specific impression.

[0085] The face impression evaluation method, face impression adjustment method, and eyebrow makeup method of the present invention are as exemplified above, but the present invention is not limited to the exemplified embodiments. Also, in the present invention, various forms adopted in general evaluation methods or eyebrow makeup methods can be adopted within the range that does not impair the effects of the present invention.

Example

[0086] Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

[0087] <Makeup for natural eyebrows (test example)> Makeup was applied to the natural eyebrows of the faces of a plurality of women. Regarding the eyebrows after makeup, the shape (including arrangement) was quantified using the degree of separation from the above-mentioned first reference line, second reference line, and third reference line as indices. (Subjects) · 5 women over 40 years old (Group A) · 4 women under 40 years old (Group B) (Shape of eyebrows after makeup) Regarding the shape of the eyebrows after makeup, measurements were taken along the above-mentioned indices. The measurement results are as shown in Table 1A and Table 1B respectively.

[0088] <Makeup for comparison> As a comparison target, for the same person, a conventional eyebrow makeup method was implemented. Regarding the conventional eyebrow makeup method, as described above. The eyebrow shape after makeup was measured and quantified in the same manner as in the above test example.

[0089] (Specification of the shape and position of the eyebrows after makeup) Each term described in Table 1A and Table 1B will be explained below. · Eyebrow head position The angle formed by the first reference straight line measured in the first step and the eyebrow head straight line · Eyebrow tail position The angle formed by the second reference straight line measured in the second step and the eyebrow quality straight line · Eyebrow peak angle The angle of the most separated part in the broken line formed by connecting the part of the lower edge (the most separated part) that is farthest from the third reference straight line measured in the third step and the left and right ends of the lower edge of the eyebrow · Eyebrow height ratio The ratio of the height from the lower end of the lower eyelid to the eyebrow to the height from the corner of the mouth to the lowest end of the lower eyelid, measured in the fourth step

[0090]

Table 1A

[0091]

Table 1B

[0092] <Visual impression confirmation regarding the impression of the face> For the face with eyebrows made up by the method of the test example and the face with eyebrows made up by the makeup method for comparison, the impressions of each face were visually confirmed by oneself. According to the evaluation items shown in Table 2A and Table 2B respectively, the impressions were compared by looking at the images of each face. For the face with eyebrows made up by the method of the test example, when thinking "so", it is described as Yes in Table 2A and Table 2B. In addition, the results in each of Group A and Group B are also shown in Table 2A and Table 2B respectively.

[0093]

Table 2A

[0094]

Table 2B

[0095] As can be understood from the above results, the method for evaluating the impression of a face according to the present embodiment adopted indexes (such as the degree of separation from the first reference line to the third reference line, etc.) closely related to the impression of a specific face, and was able to specify the eyebrow shape. Furthermore, by the degree of separation described above for specifying the eyebrow shape being within a predetermined range, it was possible to make the face show a specific impression. As can be understood from the above results, in the method for adjusting the impression of a face according to the present embodiment, by setting indexes (such as the degree of separation from the first reference line to the third reference line, etc.) for specifying the eyebrow shape within a predetermined range, it was possible to make the face show a specific impression. As can be understood from the above results, the method for making up eyebrows according to the present embodiment can make up the natural eyebrows relatively simply, and moreover, can make the face show a specific impression.

[0096] It is considered that the factors such as the eyes, nose, mouth, etc. appearing to be centered, the face appearing small, or the face appearing thin by the above method for making up eyebrows (test example) are related to the optical illusion effect. For example, as shown in FIGS. 9(A) and 9(B), when a plurality of lines are drawn on the surface of a cylinder whose cylindrical axis extends in the horizontal direction, the case where the plurality of lines are drawn with the central portion being denser (B) causes an optical illusion where the length in the vertical direction appears shorter than the case where the plurality of lines are drawn at equal intervals (A). Therefore, by drawing the eyebrows shorter (than the eyebrows by a general eyebrow makeup method) and positioning the eyebrows at an appropriate lower position, it is considered that the vertical length of the face appears shorter due to an optical illusion effect as if the eyebrows, eyes, nose, and mouth are closer to the center of the face.

[0097] Also, for example, as shown in FIGS. 10(A) and 10(B), when a plurality of lines are drawn on the surface of a cylinder whose cylindrical axis extends in the vertical direction, the case where the plurality of lines are drawn with the central portion being denser (B) causes an optical illusion where the length in the horizontal direction (width) appears shorter than the case where the plurality of lines are drawn at equal intervals (A). Therefore, by drawing the eyebrows shorter (than the eyebrows by a general eyebrow makeup method), it is considered that the width of the face appears narrower due to an optical illusion effect as if there is depth at both left and right ends of the face.

[0098] In addition, for example, as shown in FIGS. 11(A) and 11(B), the case where the central portion of the circle is painted darker (B) causes an optical illusion where a three-dimensional effect is created and the area of the circle appears smaller than the case where the entire circle is painted dark (A). Therefore, by drawing the eyebrows darker, it is considered that the face appears smaller due to an optical illusion effect where the central portion of the face appears darker and a three-dimensional effect is created.

Industrial Applicability

[0099] The method for evaluating the impression of a face, the method for adjusting the impression of a face, or the eyebrow makeup method of the present invention is used, for example, mainly to make the face of a person mainly after middle age, who does not necessarily look young, look young. Also, the method for evaluating the impression of a face, the method for adjusting the impression of a face, or the eyebrow makeup method is used, for example, to make the face of a person who has not yet advanced in aging look smaller, to make the face look tightened, or to make the impression of the face clearer. The face impression evaluation method and face impression adjustment method of the present invention are suitably used, for example, by a store clerk to counsel a customer on a makeup method in a beauty salon or the like. The eyebrow makeup method of the present invention is suitably used, for example, by an operator to perform on a customer (subject).

Explanation of Signs

[0100] α1: First reference line, α2: Second reference line, α3: Third reference line, β1: Eyebrow start line, β2: Eyebrow end line, β3: Broken line.

Claims

1. A method for adjusting the impression of a face based on the shape of a made-up eyebrow, comprising: an image preparation step of preparing at least two digital images of a face with the shape of the eyebrow changed; an impression confirmation step of visually confirming the impression of the face in the at least two prepared digital images, wherein the image preparation step includes a first modification step of setting a first reference straight line extending vertically upward from the base of each of the wings of the nose on both the left and right sides of the face in the digital image, and changing the degree of separation between the straight line connecting the base and the brow head of the eyebrow and the first reference straight line by image processing using computer software to change the shape of the eyebrow; a second modification step of setting a second reference straight line connecting the corners of the mouth and the outer corners of the eyes on both the left and right sides of the face in the digital image, and changing the degree of separation between the straight line connecting the corner of the mouth and the brow tail of the eyebrow and the second reference straight line by image processing using computer software to change the shape of the eyebrow; a third modification step of setting a third reference straight line connecting the lower ends of both the left and right ends of each of the eyebrows on both the left and right sides of the face in the digital image, and changing the degree of separation between the lower edge of the eyebrow extending in the left-right direction and the third reference straight line by image processing using computer software to change the shape of the eyebrow; a fourth modification step of changing the height of the eyebrow by changing, by image processing using computer software, the ratio of the height from the lower edge of the eyebrow to the height from the lowest end of the lower eyelid for each height from the corners of the mouth on both the left and right sides of the face in the digital image to the height from the lowest end to the lower edge of the eyebrow; a fifth modification step of changing the shape of the eyebrow by changing, by image processing using computer software, the ratio of the thickness of the brow peak to the thickness of each brow head on both the left and right sides of the face in the digital image, wherein in the impression confirmation step based on the face in the digital image with the shape of the eyebrow changed by the first to fifth modification steps, the impression of the face is visually confirmed for each evaluation item related to the impression of the face, and as the evaluation items, evaluation items related to the arrangement of the eyes, nose, and mouth in the face, and evaluation items related to the size of the face are adopted, and the image preparation step and the impression confirmation step are repeated. A method for adjusting the impression of a face.

2. In the first modification step, as the degree of separation, an angle formed by a straight line connecting the roots and the inner corners of the eyebrows on both the left and right sides of the face and the first reference straight line is adopted, and the angle is changed within a range of 0° or more and 10° or less. In the second modification step, as the degree of separation, an angle formed by a straight line connecting the corners of the mouth and the outer corners of the eyebrows on both the left and right sides of the face and the second reference straight line is adopted, and the angle is changed within a range of 0° or more and 10° or less. In the third modification step, as the degree of separation, an angle of the most separated part of the lower edge of the eyebrows, which is farthest from the third reference straight line in a direction perpendicular to the third reference straight line on each of the left and right sides of the face, and the left and right ends of the lower edge of the eyebrows is adopted, and the angle is changed within a range of 140° or more and 180° or less. In the fourth modification step, the ratio of the eyebrow height is changed within a range of 0.2 or more and 0.4 or less. In the fifth modification step, the ratio of the thickness of the highest point of the eyebrows is changed within a range of 0.6 or more and 1.2 or less. The method for adjusting the impression of a face according to claim 1.

Images