Method for rapidly detecting skin color

A skin color detection and fast technology, applied in the direction of instrument, calculation, character and pattern recognition, etc., can solve the problems of slow speed and complex calculation of skin color detection algorithm, and achieve the effect of solving complex calculation and facilitating realization.

Inactive Publication Date: 2011-11-09
BYD CO LTD
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AI Technical Summary

Problems solved by technology

[0012] The present invention provides a simple and fast skin color detection algorithm to solve the technical problem of complex calculation and slow speed in the existing skin color detection algorithm

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  • Method for rapidly detecting skin color
  • Method for rapidly detecting skin color
  • Method for rapidly detecting skin color

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] A fast skin color detection method such as figure 1 shown, including:

[0025] a. Obtain the pixel value of the YCbCr color gamut space image;

[0026] b. Establish a closed skin color area model, and Cb and Cr in the closed area skin color model satisfy the formula:

[0027] In the formula, p is a constant with a value range of [0, 1], and c is the first coefficient with a value range of [27.7, 74.3];

[0028] c. Select the pixel points where Cb and Cr meet the closed area as skin color points.

[0029] As an optimal solution, the value of c is 28.

[0030...

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Abstract

The invention provides a method for rapidly detecting skin color, belonging to the field of digital signal processing. The method for rapidly detecting skin color comprises the following steps of: a, obtaining pixel values of images of YCbCr color gamut spaces; b, establishing a closed skin color region model, wherein Cb and Cr in the closed skin color region model are as follows: p in the formula is a constant number in a value range of 0-1 and c is a first coefficient and has a value range of 27.7-74.3; c, selecting pixel points with Cb and Cr which satisfy the requirements of the closed region to be used as skin color points. The method provided by the invention has the advantages of simplicity in calculation and high speed and is used for solving the technical problems that the traditional method for detecting the skin color has a complicated algorithm and lower speed.

Description

technical field [0001] The invention belongs to the field of digital signal processing and relates to a fast skin color detection method. Background technique [0002] The goal of human skin color detection is to automatically locate the naked skin area of ​​the human body from the image. Accurately detecting skin regions has wide applications in face detection, gesture analysis, object tracking, and image retrieval. [0003] The skin color model in the RGB (R, G, B respectively represent red, green, blue) color space is defined as: R>G>B; HSV (H, S, V represent hue, saturation, brightness respectively) color space skin color model Defined as: V>40; YCbCr (Y refers to the brightness component, Cb refers to the blue chroma component, Cr refers to the red chroma component) color space skin color model is defined as: 77≤Cb≤127, and 133≤Cr≤173. [0004] Skin color models are generally divided into four types: (1) regional model; (2) simple Gaussian model; (3) mixed Ga...

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06K9/62
Inventor韩桂玉毛水江梁剑胡文阁
OwnerBYD CO LTD