System for image correction processing

An image processing device, comprising:

• an image smoothing unit smoothing a target image having pixel values which include a plurality of color components with a different plurality of smoothing degrees and generating a plurality of smoothed images;
• a calculation unit obtaining, at each pixel position of the target image, color differences being differences between a pixel value of a predetermined color component of the target image and pixel values of a color component of each of the smoothed images in which the color component is different from the predetermined color component, and calculating dispersions of the color differences being obtained;
• a determination unit comparing sharpness of each of the color components of the target image based on the dispersions of the color differences and determining a color component having the highest sharpness;
• and
• an adjustment unit adjusting the sharpness of at least one of the color components of the target image based on the color component having the highest sharpness.