Face photo sunglass automatic removing method based on gray histogram matching
A gray histogram, sunglasses technology, applied in the direction of instruments, character and pattern recognition, computer parts, etc. Accuracy and the effect of improving the recognition rate
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[0056] Embodiment: a kind of face photo sunglasses automatic removal method based on grayscale histogram matching: use a kind of method based on " active shape model (Active Shape Model: ASM) ", automatically locate the facial features outline ( Eyes, eyebrows, nose, mouth, ears) and the outline of the whole face; thereafter, according to the intercepted eyebrow and eye contour position information, through the method of image cutting, automatically cut out the target image area that may wear glasses; analysis And process the obtained outline to judge whether to wear sunglasses; thereafter, for the cut image area, the method of grayscale histogram matching and the histogram data (target histogram) of not wearing sunglasses stored in the database , automatically match the gray distribution histogram of the target image area to the target histogram, so as to obtain the effect of automatic removal of sunglasses. The described method comprises the following steps:
[0057] The fi...
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