Method for automatically segmenting face in digital photo
An automatic segmentation and face technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as complex faces, and achieve the effect of improving system robustness, stable detection, and accurate automatic face segmentation.
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[0026] 1. Face detection: Adaboost algorithm is used to realize the initial positioning of the face area, and the face area is marked with a rectangular frame, or the entire photo can be regarded as a face area.
[0027] 2. Contour initial positioning: An improved algorithm based on the single Gaussian model SGM is used to detect the face skin area, and an ellipse is used to fit this part of the area as the initial contour line in the next step. The specific implementation steps are as follows:
[0028] Skin tones are fairly concentrated in color space and are affected by lighting and race. In order to reduce the influence of skin color by illumination intensity, the present invention converts the color from RGB space to YCbCr color space, then abandons the brightness component Y, and only uses Cb and Cr components as information for skin color training and classification, which overcomes the influence of light to a certain extent , the mixed Gaussian model GMM used in the ne...
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