A detection method of skin surface pore size based on image color space
A detection method and color space technology, applied in the field of skin image processing application software, can solve the problem of poor detection accuracy of pores, lack of numerical indicators for the characteristics of pores on the surface of macro-skin images, failure to remove hair, and misidentification of pores by dark spots etc. to achieve the effects of reducing or avoiding the influence of lighting conditions, fast calculation speed and high accuracy
Active Publication Date: 2020-03-20
JINGCHENG WORKSHOP ELECTRONICS INTEGRATION TECH BEIJING CO LTD
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[0006] The image detection pore algorithm has been proposed in recent years. At present, there is a skin image pore detection algorithm based on HSV color space. This method first converts the acquired RGB color space image into HSV color space, and then thresholds the image on the basis of this HSV image. Segmentation and morphological de-drying methods realize skin pore detection. This method can automatically identify pores, but it does not provide a numerical index that can evaluate the surface pore characteristics of a macro skin image, and does not remove misidentified pores caused by hair, dark spots, etc. , the accuracy of pore detection is not high
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[0054] Below in conjunction with accompanying drawing, further describe the present invention through embodiment, but do not limit the scope of the present invention in any way.
[0055] The invention provides a skin surface pore size detection method based on an image color space, which calculates and specifies a surface pore size characteristic value of an image according to the skin image RGB color space pixel value information, and realizes skin image pore size detection and evaluation. Adopt the inventive method to realize a set of skin detection system to implement, and this system configuration is as table 1:
[0056] Table 1 The configuration of the skin surface pore size detection system implemented by the present invention
[0057] name Device model quantity skin imaging device Macro skin imaging equipment to obtain skin images with the same resolution and the same length and width 5 Cloud Server Windows server 2012, MySql5.7.16, Opencv2....
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The invention discloses a skin surface pore size detection method based on image color space. Through carrying out image processing on a skin micro distance digital image, indexes for measuring the skin pore size in a skin image are obtained. The method comprises steps: a color space pixel matrix for the skin image is acquired; image graying and image enhancement processing are carried out; image ternary processing is carried out, and a pore pixel, a hair pixel and other pixels are marked; a pore is recognized through a pore pixel four-connected mode, and the number and the sizes of the pores are counted; mistakenly-recognized pores are eliminated through an area and shape method; as for remaining pores after elimination, the mean value of the sizes of the pores is counted according to the pore number, the mean value serves as a feature value for skin pore detection, and thus, detection on the skin surface pore size based on the image color space can be realized. The pore size detection method is high in accuracy, fast in speed, and has good market application prospect and value.
Description
technical field [0001] The invention relates to skin pore detection technology, in particular to a skin surface pore size detection method based on image color space, and belongs to the field of skin image processing application software. Background technique [0002] Skin surface state detection is an important means of skin aging and anti-aging research, and it is also one of the important indicators for the objective evaluation of skin care products. With the improvement of people's living standards, the beauty and care of facial skin has received widespread attention. How to objectively and quantitatively analyze and identify skin images is one of the research hotspots in the field of skin image processing this year. One of the important applications It is the detection of the size of the pores on the skin surface. [0003] At present, the skin surface state detection technology at home and abroad is still relatively backward, and the traditional visual inspection metho...
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IPC IPC(8): G06T7/00G06T7/62G06T7/90
CPCG06T7/0012G06T7/62G06T7/90
Inventor 刘迎邱显荣
Owner JINGCHENG WORKSHOP ELECTRONICS INTEGRATION TECH BEIJING CO LTD