Patent ID: 7236264

Claim:
A method for adjusting the color of a scanned image, comprising: obtaining image data for the scanned image, the image data of the scanned image comprising RGB data; generating an output image from the scanned image; obtaining image data for the output image, the image data of the output image comprising RGB data; generating a three-dimensional histogram from the RGB data of the scanned image: generating a three-dimensional histogram from the RGB data of the output image: identifying peak values for each color region of the scanned image from the three-dimensional histogram from the RGB data of the scanned image and peak values for each color region of the scanned image from the three-dimensional histogram from the RGB data of the output image: generating coefficients from differences between the identified peak values for each color region of the scanned image and the identified peak values for each color region of the output image; and adjusting the image data of the scanned image based on the generated coefficients.