| 摘要 |
An image correction apparatus reduces unnaturalness resulting from a light-source state by execution of separating (S13a) captured image data into luminance data and color-difference data, converting (S13b) the color-difference data into a set of amplitude values in a spatial frequency domain, detecting (S13c) a light-source state when the image data is captured, correcting (S13e) the set of amplitude values based on the light-source state so that a predetermined amplitude value is decreased, inversely converting (S13f) the set of amplitude values which is corrected to produce corrected color-difference data, and generating (13g) corrected image data from the corrected color-difference data and the luminance data. |
