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Method for detecting skin colors and pigmentation situation of skin

A detection method and skin pigment technology, applied in the field of image processing, to achieve the effect of large color gamut and wide industrial value

Inactive Publication Date: 2017-02-15
SHEN ZHEN COSBEAUTY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the image, the skin color of the human body changes significantly due to the influence of light, so that the traditional method of directly observing the skin color cannot cope well with different lighting conditions.

Method used

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  • Method for detecting skin colors and pigmentation situation of skin
  • Method for detecting skin colors and pigmentation situation of skin
  • Method for detecting skin colors and pigmentation situation of skin

Examples

Experimental program
Comparison scheme
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Embodiment

[0054] The invention provides a detection method of skin color, comprising the following steps:

[0055] S10: Using the calibrated image acquisition device to acquire the image of the skin to be tested;

[0056] S20: Perform statistics on the color information of the skin image to be tested in the Lab color space and obtain component values ​​of the color of the skin image to be tested in the Lab color space;

[0057] S30: Grading the skin color of the acquired skin image according to the component value against the color card.

[0058] As mentioned above, it needs to be understood that the RGB color mode is a color standard in the industry, which is determined by changing the three color channels of red (R), green (G), and blue (B) To obtain a variety of colors, RGB represents the colors of the three channels of red, green, and blue, and is one of the most widely used color systems at present.

[0059] However, the color space is composed of hue, saturation and brightness, ...

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Abstract

The invention provides a method for detecting skin colors and the pigmentation situation of skin. The effect of conducting color division on a skin image in a Lab color space is superior to a skin color dividing effect in an RGB color space. Especially when skin colors have similar brightness values and different tone values, division is very difficult in the RGB color space, but a good division effect is achieved in the Lab color space. In addition, more edge noise can be removed after the skin image is subjected to median filtering treatment. Furthermore, the exposure gain and white balance parameters of an image acquisition device to be calibrated are adjusted in the mode of establishing a standard device till the differences between testing component values and standard threshold values are smaller than the same error value. The lighting influence is effectively overcome, skin colors in the skin image is accurately divided, and the pigmentation situation of the skin is analyzed.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for detecting skin color and pigmentation. Background technique [0002] Skin color refers to the skin color reflected by the pigmentation of the epidermis of human skin due to melanin, prohemoglobin, and chlorophyll. Skin color has different distributions in different regions and groups of people. [0003] Human skin color detection technology is widely used in many fields, such as the judgment of skin problems, skin care, skin disease diagnosis, gesture recognition, face recognition and pornographic image filtering, etc. Skin color detection is usually used as a preprocessing work in these fields, and its accuracy will have a great impact on the later processing work. [0004] However, the skin color of the human body in the image changes significantly due to the influence of light, so that the traditional method of directly observing the skin color cannot c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B5/103
CPCA61B5/443A61B5/1032A61B5/445A61B5/7203
Inventor 程腾周桂文许礼强王洪涛方自然黄万富
Owner SHEN ZHEN COSBEAUTY CO LTD
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