Image processing method and system for correcting digital image data from photographic medium

An image processing system for correcting digital image data read from a photographic medium, comprising:

• a diffusing process unit for effecting a diffusing process on an original image composed of the digital image data, thereby to generate a diffused image;
• a synthesizing coefficient calculating unit for calculating a synthesizing coefficient for each pixel of the diffused image by using a pixel value of the diffused image as a parameter;
• and
• an image correcting unit for generating a corrected image by effecting synthesis between the original image and the diffused image according to said synthesizing coefficient;
• wherein said synthesizing coefficient determines a ratio of the pixel value of the diffused image relative to the pixel value of the corrected image.

A computer-readable medium having stored thereon computer-executable instructions which when executed perform an image processing method comprising:

• effecting a diffusing process on an original image composed of the digital image data, thereby to generate a diffused image;
• and
• generating a corrected image by calculating, for each corresponding pair of pixels of the diffused image and the original image, a pixel value of the original image and a pixel value of the diffused image, based on a synthesizing coefficient provided for each pixel;
• wherein said synthesizing coefficient determines a ratio of the pixel value of the diffused image relative to the pixel value of the corrected image.