IMAGE PROCESSING METHOD AND PRINTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To reduce the grain feeling in particular in the bright part of a printed image by relatively simple constitution using a secondary color in an image printed by a printing apparatus. SOLUTION: Under color removing treatment is performed from the data of color component magenta and cyan in image data to form image data of blue ink being a secondary color. A dot of blue ink is formed on the basis of the data of the blue ink replaced with magenta and cyan to perform printing. By this constitution, the ink dot of magenta and the ink dot of cyan are distributed in a mutually biased state and a grainy feeling can be reduced.