Patent ID: 8610981
Filing Date: 2013-12-17
Classification: H04N

Abstract:
1. An image processing device comprising: a storage part to store a target value set for each tone value in a plurality of colors, for each of the colors; a measurement value information obtaining part to obtain measurement value information for each of the colors, the measurement value information comprising a measurement value of a density at each of a plurality of measurement positions in a main scanning direction and in a sub-scanning direction, the measurement positions being set for each tone value; a correction target value calculation part that corrects the target value based on color mixture proportion information in which a proportion of densities of the plurality of colors based on gray balance is set for each tone value, and calculates a correction target value for each tone value for each color; a correction value calculation part to calculate a correction value of the density at each measurement position in the main scanning direction and in the sub-scanning direction set for each tone value, the correction value being calculated for each color based on the correction target value and the measurement value information; and a correction part to correct a density value of each color of each pixel in image data, based on the correction value of the density for each color, calculated by the correction value calculation part.