Image analysis method and apparatus for skin lustrousness
A skin gloss and image analysis technology, applied in image analysis, image enhancement, image data processing, etc., can solve the problems of result validity, stability limitation, extrusion influence, etc., and achieve good data repeatability and stability , high sensitivity and precision, and good visual evaluation of the results
Active Publication Date: 2016-03-23
SHANGHAI JAHWA UNITED
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Most of the traditional objective evaluation methods use the probe to press the skin part to obtain the skin gloss, such as the Glossmeter GL200 of Courage & Khazaka, Germany, the result can on
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The invention discloses an image analysis method and apparatus for skin lustrousness, so that the skin lustrousness difference of people and the improvement effects of products on the skin lustrousness are effectively reflected and visual evaluation results of people are better reflected. The technical scheme is that the method comprises: acquiring a digital image of the skin of a testee under the same light source condition; setting a to-be-analyzed region on the acquired skin image; calculating frequency distribution of pixels for the to-be-analyzed region; setting extraction conditions of a highlight part; and calculating a pixel occupation ratio of the highlight part extracted according to the set extraction conditions, and taking the pixel occupation ratio as a skin lustrousness index.
Description
technical field [0001] The invention relates to the evaluation of skin characteristics and skin improvement efficacy, in particular to an analysis method and device for quantitatively evaluating skin glossiness based on skin digital images. Background technique [0002] People usually judge the health status of the skin according to the radiance of the skin, and pay attention to the improvement of the radiance of the skin by cosmetics and health products. Therefore, during skin consultation, product efficacy evaluation, etc., the user's skin gloss will be evaluated. [0003] Typically, users or evaluators make a semi-quantitative subjective evaluation of gloss through visual observation. However, subjective evaluation is often affected by many subjective factors such as the evaluator's experience and emotion, so it is difficult to obtain stable results, and the evaluation results of different evaluators are often difficult to compare with each other due to different evaluat...
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Login to view more IPC IPC(8): G06T7/00G06T7/40
CPCG06T7/0002G06T2207/10024G06T2207/30201
Inventor 职蕾蕾鲁楠华伟光张文娟姜银凤
Owner SHANGHAI JAHWA UNITED
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