Patent ID: 8326073

Claim:
A method for beautifying a human face in a digital image, adapted to remove noises on the skin of a human face in an input image, the method comprising: a. selecting a partial image area in the input image as a selection window; b. setting a target pixel in the selection window, and setting other pixels as comparison pixels; c. performing a detail checking process according to a variance between the target pixel and the comparison pixels to determine whether the target pixel has detail information or not; d. if the target pixel has the detail information, performing a luminance checking process on the target pixel to determine whether the target pixel is within a luminance range or not; e. if the target pixel is within the luminance range, performing a nonlinear filtering process to filter the target pixel by using a nonlinear filter to generate a filtered value, and providing a mixing ratio to mix the target pixel with the filtered value at the mixing ratio to generate a completed pixel, and replacing the target pixel with the completed pixel; and f. repeating Step a to Step e until all pixels in the input image are completed, and outputting a target image.