Method and device for processing human face image

A face image and processing method technology, applied in the field of image processing, can solve the problems of unacceptable brightness and chromaticity of the whole image, achieve the effect of smooth texture, beautify the face, and improve the face image

Inactive Publication Date: 2008-11-05
VIMICRO CORP
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Problems solved by technology

The existing face beautification method is mainly to adjust the brightness and skin color of the human face. In this way, while improving the brightness and...

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  • Method and device for processing human face image
  • Method and device for processing human face image
  • Method and device for processing human face image

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Embodiment Construction

[0036] The present invention proposes a face image beautification method, which first detects whether there is a face image in the image, and if so, extracts the area of ​​the face; projects the face area in a pre-trained pivot space, and reconstructs it according to the projection result. Since the pre-trained principal component space only retains the components of the low-frequency part of the face image and removes the high-frequency part, the reconstructed face image only contains the low-frequency components in the image and removes the high-frequency components. In the face image, the low-frequency part usually contains information such as brightness, skin color, posture, face shape, expression, etc., and the high-frequency part usually contains detailed information such as spots, wrinkles, and texture thickness. Therefore, by projecting and reconstructing the face image in the principal component space, the skin color and texture of the face image become uniform, the wr...

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Abstract

The present invention discloses a face image processing process and apparatus. The scheme of the invention will project the face region of the image in the beforehand disciplinary pivot space, and reconstructs according to the projection result. As the beforehand disciplinary pivot space only reserves the low frequency partial component of the face image and removes the high-frequency part, thereby the reconstructed face image only contains low-frequency components in the image and removes the high-frequency components. In the face images, the low frequency part usually includes brightness, skin color, gesture, face shape, face expression and the like information, while the high-frequency part usually includes flecks, wrinkles, thickness veins and other details. As a result, by the projection and reconstruction of facial image in the pivot space, the skin color and veins of the face images become uniform, wrinkles decrease, spots disappear, and so on, so as to achieve the goal of the human face image improvement and face beautification. Since the scheme of the invention only process the part of the face image, which will not affect the whole image.

Description

technical field [0001] The invention relates to image processing technology, in particular to a face image processing method and device. Background technique [0002] The image acquired by the image capture device usually needs to be processed by brightness adjustment, denoising, edge enhancement, etc., so that the obtained image has appropriate brightness, contrast, etc. Currently, these processes are performed on the entire image. [0003] As the main region of interest in the image, the face image region is usually the region that people care about the most. In different application environments, people have different requirements for images. In application environments such as video chatting, people often hope to beautify face images, reduce wrinkles, eliminate color spots, and smooth skin. Existing face beautification methods mainly adjust the brightness and skin color of people's faces. Like this, while improving the brightness and skin color of people's faces, the ...

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Application Information

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IPC IPC(8): G06T5/00G06T5/20
Inventor 王俊艳黄英
Owner VIMICRO CORP
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