Patent ID: 8106962

Claim:
An image correction apparatus comprising: an image capture unit configured to capture image data; a separator unit configured to separate the image data captured by the image capture unit into luminance data and color-difference data; a conversion unit configured to convert the color-difference data separated by the separator unit into a set of amplitude values in a spatial frequency domain; a light-source state detector configured to detect a light-source state when the image capture unit captures the image data; a correction unit configured to correct the set of amplitude values converted by the conversion unit based on the light-source state detected by the light-source state detector so that a predetermined amplitude value is decreased from the set of amplitude values; an inverse-conversion unit configured to inversely convert the set of the amplitude values in the spatial frequency domain which is corrected by the correction unit to produce corrected color-difference data; and a corrected image generator configured to generate corrected image data from the corrected color-difference data and the luminance data.