Method for detecting video frequency image flesh colour processed based on multiple colour field selectivity morphology

Abstract

The invention discloses a video image skin-tone detection method based on multi-color gamut selective morphology processing and is characterized in that: the mathematical morphology processing technology is introduced, video image data is input and passes through two parallel skin-tone detection modules based on RGB color gamut and YUV color gamut, pixels in the image are analyzed, selected and roughly judged whether the pixels are skin-tone pixels of the human body respectively in an RGB color space and a YUV color space under the control of a register operation management module MCU, the detection result is made a comprehensive judgment and analysis by a comprehensive judgment module for skin-tone detection, then a binary image obtained through the judgment is made a selective morphology filtering based on the content information in a selective morphology filtering module, finally the detected skin-tone is protected or processed under the control of the register operation management module MCU according to the need of the user to obtain the image which meets the visual habit of human eyes.

Description

technical field [0001] The invention relates to a digital video image processing method, in particular to a video image skin color detection method based on multi-color gamut selective morphology processing. Background technique [0002] With the rapid development of digital video processing technology, various methods to improve image quality are applied to video processing chips to provide consumers with high-quality video images, while traditional image quality improvements such as gamma correction, saturation enhancement, and black level expansion Technology can no longer meet people's requirements for video picture quality, and more and more TV systems have begun to study a new image quality improvement technology-skin color processing technology. Skin color detection and processing technology is an important branch of video image processing technology. Since human beings are more interested in themselves than anything else, due to the interference of light, electricity...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low detection accuracy and false detection in the prior art, the present invention provides a method for accurately and quickly detecting the skin color of a video image. Analyze, select and judge whether the pixels in the image are human skin color pixels, and then perform selective morphological filtering based on content information on the binary image obtained from the judgment, and finally protect or process the detected skin color according to user needs, Obtain an image that conforms to the visual habits of the human eye

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