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Skin color extraction and detection method based on YCbCr

An extraction method and a technology for skin color detection, applied in the field of image processing, can solve problems such as low robustness and inability to effectively segment faces, and achieve the effect of improving robustness

Active Publication Date: 2019-12-20
JIANGNAN UNIV
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Problems solved by technology

[0005] In order to solve the problem that the existing skin color targets such as faces and gestures cannot be effectively segmented under strong light and low light environments, and the robustness of extracting skin color areas is not high, the present invention provides a method for extracting and detecting skin color based on YCbCr

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  • Skin color extraction and detection method based on YCbCr
  • Skin color extraction and detection method based on YCbCr
  • Skin color extraction and detection method based on YCbCr

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Embodiment 1

[0061] This embodiment provides a skin color detection method based on YCbCr. The method converts the RGB color space to the YCbCr color space to obtain the brightness component of the image, and then uses different formulas to extract the Cr and Cb components according to the range of the brightness component Y. Extract skin color area of ​​the image;

[0062] The following takes the extraction of skin color blocks under different light intensities as an example to illustrate the specific implementation of the method of the present invention. The experimental environment includes: CPU adopts i5-7200U, program is written in Python language, and the image is processed in the Spyder program debugging environment. The operating environment adopts Window10 operating system. The whole hardware part of an improved skin color segmentation method experiment environment includes: the camera adopts Logitech (Logitech) C270iIPTV high-definition network camera, adopts China Daheng Group Co.,...

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Abstract

The invention discloses a skin color extraction and detection method based on YCbCr, and belongs to the technical field of image processing. According to the method, Cr and Cb components are extractedby adopting different formulas according to the range of a brightness component Y so as to realize extraction of an image skin color region; y<=20 or Y>=180; and obtaining Cr and Cb components by adopting an improved conversion formula from an RGB color space to a YCbCr color space, therefore, the segmentation of the skin color in strong light and weak light environments is still clear. The robustness of skin color recognition is improved, the problem that the skin color area of the image cannot be extracted in strong light and weak light environments is effectively solved, and the skin colordetection technology can recognize the skin color area of the human body more accurately in the application of the technical field of image processing.

Description

Technical field [0001] The invention relates to a method for extracting and detecting skin color based on YCbCr, and belongs to the technical field of image processing. Background technique [0002] Skin color extraction is the basis of skin color detection, and skin color detection refers to the process of selecting pixel regions corresponding to human skin in the image. With the rapid development of image processing technology, skin color detection technology is widely used in face detection and recognition, and face tracking , Facial expression recognition, gesture recognition, human-computer interaction, image retrieval based on image content, video surveillance, etc., but the image information obtained by the camera will be affected by the complex environment at all times, and it is taken when the light intensity changes greatly It is difficult to capture the skin color information in the image, so it is difficult to recognize the specific meaning of the human body. In order...

Claims

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Application Information

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IPC IPC(8): G06T7/90G06T7/13G06T7/11G06T5/00
CPCG06T7/90G06T7/11G06T7/13G06T2207/20028G06T5/70
Inventor 高美凤付天豪于力革
Owner JIANGNAN UNIV
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