IMAGE PROCESSOR, CONTROL METHOD OF THE SAME, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To solve the problem that frequent switching of ON/OFF of trap occurs and image deterioration is caused when trapping processing is performed in a case where a plurality of pixels at vicinity of a threshold exist or a case of a gradation image.SOLUTION: Density of a trap color applied to a target pixel is controlled on the basis of the density of the target pixel of an input image and the density of a reference pixel around the target pixel.