53results about How to "Color difference" patented technology

The present invention provides a lighting apparatus which improves identification of living body tissues, and is suitable for medical lighting. In the lighting apparatus, the light output in a range of wavelength 525 to 590 nm is not greater than ⅕ of the light output in a range of wavelength 380 to 780 nm corresponding to visible light components. The peak wavelength of a blue or bluish green light component included in the output light is in a range 430 to 520 nm, and the peak wavelength of a red light component is not less than 600 nm. A green light component has the peak in a range of wavelength 520 to 590 nm, its spectral half-value width is not greater than 70 nm, and the light amount of at least the green light component can be independently adjusted.

A spectacle lens (2) has an antireflective coating (1). The antireflective coating (1) produces a residual reflection appearing color-neutral not only under illumination with a natural daylight spectrum, but also under an illumination with an illumination spectrum deviating from the natural daylight spectrum. A method for making a spectacle lens (2) having an antireflective coating (1) is described in which an optical lens (2a) is provided and a layer sequence of layers (3, 4, 5, 6, 7, 8, 9) with alternately high and low refractive material forming the antireflective coating (1) is applied to the optical lens. The antireflective coating (1) is applied with the proviso that the antireflective coating (1) produces a residual reflection appearing color-neutral not only under illumination with a natural daylight spectrum, but also under an illumination with an illumination spectrum deviating from the natural daylight spectrum.

A vehicular marker lamp such as a tail and stop lamp, including a translucent member extending substantially along a translucent cover which is red and transparent with first light-emitting diodes in the back and second light-emitting diodes near the side end of the cover. The translucent member has a direct light-emitting region that transmits light, which is incident to the translucent member from the first light-emitting diodes, toward the front, and indirect light-emitting regions that internally reflect light, which is incident to the translucent member from the second light-emitting diodes, so as to emit such light toward the front. The direct light-emitting region is a red transparent region, and the indirect light-emitting regions are colorless transparent regions, thus allowing the appearances of the direct and indirect light-emitting regions to be significantly different from each other when the lamp is lit.

A compound-eye imaging device comprises a flash control means for controlling a flash unit to alternatively emit two kinds of near-infrared lights having different wavelengths while multiple single-eye images are read using a rolling shutter; a single-eye image reading means for reading, from the single-eye images, a single-eye image (hereafter “pre-change single-eye image”) imaged under a first illumination condition before an illumination condition change by the flash control means, and a single-eye image (hereafter “post-change single-eye image”) imaged under a second illumination condition after the illumination condition change; and an eye position detecting means for detecting eye positions in the single-eye images based on a comparison between the read pre-change and post-change single-eye images. This imaging device can further comprise: a face extracting means for extracting a face area based on the detected eye positions; and a personal identification means for performing personal identification based on the extracted face area.

In an ink jet printing apparatus using many types of inks to execute bidirectional printing, if ejection opening rows for yellow, magenta, and cyan inks are symmetrically arranged, ejection opening rows for a black ink are arranged adjacent to the most inside ejection opening rows for the yellow ink. Thus, a difference in color between forward scanning and backward scanning is determined by a difference in coloring between the black ink and the yellow ink. In this case, a possible color drift attributed to bidirectional printing can be suppressed by selecting the inks so that the difference in coloring between the black ink and the yellow ink is smaller than that between the black ink and the other color inks.

An electronic camera is characterized by including an imaging part shooting a figure image; an area detection part detecting a flesh-colored area including a face portion and a portion other than a face; a color judgment part judging color information of the flesh-colored area; a color difference calculation part determining a color difference between first color information of the face portion and second color information of the flesh-colored area of the portion other than the face; a correction coefficient calculation part determining color correction coefficients based on the color difference; an area appointment part appointing an area on which a color conversion is performed; and a color conversion part performing, when the color difference is equal to or greater than a predetermined value, the color conversion on the area appointed by the area appointment part by using the color correction coefficients.

A spectacle lens (2) has an antireflective coating (1). The antireflective coating (1) produces a residual reflection appearing color-neutral not only under illumination with a natural daylight spectrum, but also under an illumination with an illumination spectrum deviating from the natural daylight spectrum. A method for making a spectacle lens (2) having an antireflective coating (1) is described in which an optical lens (2a) is provided and a layer sequence of layers (3, 4, 5, 6, 7, 8, 9) with alternately high and low refractive material forming the antireflective coating (1) is applied to the optical lens. The antireflective coating (1) is applied with the proviso that the antireflective coating (1) produces a residual reflection appearing color-neutral not only under illumination with a natural daylight spectrum, but also under an illumination with an illumination spectrum deviating from the natural daylight spectrum.

A base image is created from RGB image signals. A B / G ratio between the B image signal and the G image signal is calculated, and a G / R ratio between the G image signal and the R image signal is calculated. A frequency component-enhanced image in which a frequency component corresponding to an abnormal part different from a normal part is enhanced is generated based on the base image. A composition ratio which indicates the ratio for composing the frequency component-enhanced image with the base image is set based on the B / G ratio and the G / R ratio. The frequency component-enhanced image is composed with the base image at the set composition ratio to generate a structure-enhanced image in which the structure of the abnormal part is enhanced.

First RGB image signals are inputted. Color difference signals Cr and Cb are calculated from the first RGB image signals. In a feature space formed by the color difference signals Cr and Cb, a first process is performed such that coordinates corresponding to a second observation area are moved to a reference area containing the origin point while coordinates corresponding to first and third observation areas are maintained unchanged. A second process is performed to move the coordinates corresponding to the first observation area and the coordinates corresponding to the third observation area away from each other.

A printing apparatus for forming a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the cording material, the apparatus includes changing device for changing an order of applications of the inks to be applied for printing a secondary color to a secondary color pixel area; forming device for forming the secondary color while making the order of applications of the inks to at least one of a plurality of the secondary color pixel areas arranged along a raster scan direction different from the order of another, by the changing device.

An image-processing device for performing processing of coloring a skin of an image of a person with a pattern in a certain color, comprising a color-correction unit that corrects the color of the pattern to determine a color for each region such that the color of the pattern applied to each region varies in a plurality of regions colored with the pattern in the image of the person; and a coloring unit that colors the image of the person with the pattern by superimposing the color for each region on a color of each region of the image of the person.

A transparent display apparatus and an image adjustment method thereof are provided. The image adjustment method includes following steps. A background image information is obtained according to a background scenery at a first side of the transparent display panel. At least one of a plurality of color attributes of a display image is adjusted according to the background image information. The adjusted display image is output at a second side of the transparent display panel.

A printer includes a transport section which transports a medium, an image recording section which records and lines up a plurality of images in longitudinal direction of the medium based on an image data set which includes a plurality of image data, and a cutting section which obtains image sheets with one image at a time recorded thereon due to cutting of the medium in a width direction of the medium, where the cutting section is provided with a leading edge cutting section which cuts once at a position on a downstream side in the transport direction with regard to a first image out of the plurality of images, and a between-image cutting section which cuts twice at each position between two adjacent images out of the plurality of images where a predetermined margin has been provided.

In an ink jet printing apparatus using many types of inks to execute bidirectional printing, if ejection opening rows for yellow, magenta, and cyan inks are symmetrically arranged, ejection opening rows for a black ink are arranged adjacent to the most inside ejection opening rows for the yellow ink. Thus, a difference in color between forward scanning and backward scanning is determined by a difference in coloring between the black ink and the yellow ink. In this case, a possible color drift attributed to bidirectional printing can be suppressed by selecting the inks so that the difference in coloring between the black ink and the yellow ink is smaller than that between the black ink and the other color inks.

An image processing apparatus includes a determination unit configured to determine, as a partial region of a multi-channel fundus image including an optic disk area and a macular area of a subject's eye, one of a region of the multi-channel fundus image which includes the macular area and a region of the multi-channel fundus image which includes the optic disk area, and a generation unit configured to generate an image in which a difference in color of the partial region is enhanced, by applying to the partial region image processing based on a decorrelation stretching method.

Provided are a light source unit for an endoscope and an endoscopy system, which clarify the color difference between a first dye and a second dye in an observation image. The light source unit has a white LED light source and a band limiting section. The white LED light source has an excitation light source that emits blue excitation light and a phosphor layer that emits yellow fluorescence upon receipt of the excitation light. As a mixture of the fluorescence and part of the excitation light, the white LED light source outputs light having an intensity spectrum continuous across blue, green and red regions. The band limiting section reduces part of the output light in a wavelength band of not lower than a threshold. The threshold is not less than 650 nm. At the threshold, the first dye (pyoktanin) has an optical reflectance of not less than a constant value, whereas the second dye (indigocarmine) has an optical reflectance of substantially zero.

A display panel is divided into a first region and a second region located outside the first region, and includes a first sub-pixel, a second sub-pixel, a plurality of scan lines, a first common line, a second common line, and a black matrix. In the first sub-pixel, a first distance exists between the first common line and a neighboring scan line along a second direction. In the second sub-pixel, a second distance exists between the second common line and a neighboring scan line along the second direction, and the first distance is not equal to the second distance. The black matrix has a plurality of holes, including a first hole and a second hole. The first hole exposes the first sub-pixel and the first common line located in the first region. The second hole exposes the second sub-pixel and the second common line located in the second region.

A base image is created from RGB image signals. A B / G ratio between the B image signal and the G image signal is calculated, and a G / R ratio between the G image signal and the R image signal is calculated. A frequency component-enhanced image in which a frequency component corresponding to an abnormal part different from a normal part is enhanced is generated based on the base image. A composition ratio which indicates the ratio for composing the frequency component-enhanced image with the base image is set based on the B / G ratio and the G / R ratio. The frequency component-enhanced image is composed with the base image at the set composition ratio to generate a structure-enhanced image in which the structure of the abnormal part is enhanced.

Disclosed is a plunger rod for a syringe. The plunger rod is useful for sliding a piston within a syringe barrel. The plunger rod is characterized in that it is colored in part or in whole. A syringe is also disclosed. According to such plunger rods, even plural syringes of exactly the same external appearance and configuration can be applied with features that make it possible to readily and visually identify them by simply taking a glance at their appearances without needing a measure such as applying indication members such as labels on them. Further, the use of such plunger rods makes it possible to provide syringes of significantly enhanced visual identifiability without impairing high-level quality, functions, sanitariness and safety required for the syringes.

First RGB image signals are inputted. Color difference signals Cr and Cb are calculated from the first RGB image signals. In a feature space formed by the color difference signals Cr and Cb, a first process is performed such that coordinates corresponding to a second observation area are moved to a reference area containing the origin point while coordinates corresponding to first and third observation areas are maintained unchanged. A second process is performed to move the coordinates corresponding to the first observation area and the coordinates corresponding to the third observation area away from each other.

Disclosed is a medical image processing device for generating an image in which a difference in color between an abnormal part where a gastric mucosa is atrophied, and a normal part is enhanced.A B / G ratio is determined from B and G image signals, and a G / R ratio is determined from the G and R image signals. In a feature space formed from the B / G ratio and the G / R ratio, first processing is performed for moving the coordinates of a second range to a reference range including the origin in a state where the coordinates of first and third ranges are maintained. In order to make the first range and the third range distant from each other, second processing is performed for moving the first and third ranges. A first special image is generated based on the B / G ratio and the G / R ratio after the first and second processing.

An image-processing device for performing processing of coloring a skin of an image of a person with a pattern in a certain color, comprising a color-correction unit that corrects the color of the pattern to determine a color for each region such that the color of the pattern applied to each region varies in a plurality of regions colored with the pattern in the image of the person; and a coloring unit that colors the image of the person with the pattern by superimposing the color for each region on a color of each region of the image of the person.

A subtle color difference between a tooth and a color sample is made recognizable by accentuating the color difference therebetween. The invention provides a dental image processing device including a row-of-teeth image storing unit 21 in which a row-of-teeth image is stored; an area partitioning line provided movably on the row-of-teeth image; a selected color storing unit 29 in which color information for correcting the color of the row of teeth is stored; a color correction unit 30 that corrects the color of the row of teeth, using the color information stored in the color selection storing unit 29, at least in one area of the plurality of areas of the row-of-teeth image divided by the area partitioning line; and a display control unit 31 that displays the row-of-teeth image corrected by the color correction unit 30.

A transparent display apparatus and an image adjustment method thereof are provided. The image adjustment method includes following steps. A background image information is obtained according to a background scenery at a first side of the transparent display panel. At least one of a plurality of color attributes of a display image is adjusted according to the background image information. The adjusted display image is output at a second side of the transparent display panel.

First RGB image signals are inputted. Color difference signals Cr and Cb are calculated from the first RGB image signals. In a feature space formed by the color difference signals Cr and Cb, a first process and a second process are performed. In the first process, coordinates which correspond to the first, second, and third observation areas are moved in a parallel manner such that the coordinates which correspond to the second observation area are moved to a reference area that contains the origin point. In the second process, the coordinates which correspond to the first observation area and the coordinates which correspond to the third observation area are moved away from each other.

An image processing device includes a pattern type determination unit in which a predetermined pattern is determined corresponding to color information of an image; a region setting unit in which a predetermined region in the image is set; an image data generation unit in which image data including the image and the pattern are included; and a size correction unit in which a size of the pattern is changed corresponding to a size of the region, or a position correction unit in which a positional relationship between a characteristic portion from which a type of the pattern included in the pattern which is determined in the pattern type determination unit can be discriminated and the region which is set in the region setting unit is corrected.

One embodiment of the present invention provides a touch detection device comprising: a plurality of sensor pads disposed so as to form a plurality of rows and columns and forming a touch capacitance with a touch input tool; and a plurality of signal wirings for respectively connecting the plurality of sensor pads to a driving device, wherein at least one side of each of the plurality of sensor pads and at least one of the plurality of signal wirings include a plurality of segments forming an acute angle with a straight line parallel to the column direction.

Disclosed is a plunger rod for a syringe. The plunger rod is useful for sliding a piston within a syringe barrel. The plunger rod is characterized in that it is colored in part or in whole. The syringe is also disclosed. According to such plunger rods, even plural syringes of exactly the same external appearance and configuration can be applied with features that make it possible to readily and visually identify them by simply taking a glance at their appearances without needing a measure such as applying indication members such as labels on them. Further, the use of such plunger rods makes it possible to provide syringes of significantly enhanced visual identifiability without impairing high-level quality, functions, sanitariness and safety required for the syringes.

Color image data composed of pixels arranged in a matrix wherein colors are expressed in bit rows is created from an acquired document file, and same-resolution binary image data and low-resolution binary image data composed of binary pixels arranged in a matrix are created based on the color image data. A first combining process is performed in which a lower bit value of a predetermined color of the pixels of the color image data is replaced with the value of the corresponding ones of the pixels of the same pixels, and a second combining process is performed in which a lower bit value of a color other than the bit replaced in the first combining process in the pixels of the first combined image data is replaced with the value of the corresponding ones of the pixels of the low-resolution binary image data.

An optical element includes a light receiving surface 101 covering a light source on a plane and an exit surface 103. When the central axis is AX, the intersection of AX with the plane is P0, and in a cross section containing AX, an angle between a line connecting P0 and P on 101 and AX is θr, an angle between a normal to 103 at Q and AX is φ, a distance from AX to Q is r, the maximum value of r on 103 is rmax, and θr and φ are positive when measured clockwise with respect to AX, φ has plural positive local maximum and minimum values as a function of r in0.5rmax≦r, in an area of 103 through which a ray travelling from P0 at a positive angle θr passes, and the shape of 103 is symmetric with respect to AX.