Patent ID: 9146513
Filing Date: 2015-09-29
Classification: G03G

Abstract:
1. An image processing apparatus, comprising: a processor; a first tone correction unit configured to, for each of a plurality of color components, perform tone correction processing to a color component value of a pixel in image data using a correction characteristic corresponding to a color component; a comparison unit configured to compare a sum of the plurality of color component values corrected by said first tone correction unit in the pixel with a limit value; a control unit configured to decrease the plurality of color component values corrected by the first tone correction unit so that the sum of the color component values is less than or equal to the limit value in the pixel in a case where the sum of the color component values corrected by said first tone correction unit is greater than the limit value; and a second tone correction unit configured to, for each of the plurality of color components, perform tone correction processing to the color component value decreased by said control unit using a correction characteristic corresponding to a color component, wherein the correction characteristic in the first tone correction unit and the correction characteristic in the second tone correction unit are axisymmetric to each other, wherein at least one of the first tone correction unit, the comparison unit, the control unit, and the second tone correction unit is implemented by the processor.