Patent ID: 7551320

Claim:
An image processing apparatus, comprising: correction means for correcting, in an RGB color space, RGB tone data which is RGB image data; and comparison means for comparing (i) tonal values of R, G, and B at a white point which is a point set in advance in the RGB color space, with (ii) tonal values of R, G, and B of the RGB tone data, respectively, the white point being a point in the RGB color space which point is neither an origin nor a point indicating respective maximum tonal values of R, G, and B and at which point the tonal values of R, G, and B are identical to one another, the correction means correcting the RGB tone data in such a manner that: (A) among the tonal values of R, G, and B of the RGB tone data, a tonal value which is determined by the comparison means to be larger than a corresponding tonal value at the white point is corrected so that a difference between the tonal value of the RGB tone data and the corresponding tonal value at the white point is smaller, and (B) among the tonal values of R, G, and B of the RGB tone data, a tonal value which is determined by the comparison means to be smaller than a corresponding tonal value at the white point is corrected so that a difference between the tonal value of the RGB tone data and the corresponding tonal value at the white point is larger.