| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus or the like that performs processing of supplying a colorant for each color and that can reliably and rapidly perform a correction processing with respect to the so-called registration shift. <P>SOLUTION: An image forming apparatus using a plurality of colorants for image formation, includes a generation means which generates bitmap data, in which each pixel has a gradation value of each color of the colorants, with respect to an object of the image formation; a classification means which classifies the pixels into a plurality of predetermined groups based on the bitmap data and generates classification data based on the classified groups for each pixel; a detection means which detects, based on the classification data, a range, in which a correction processing of modifying the gradation values has to be executed, on the bitmap data; and a correction means which executes the correction processing to the detected range, wherein the image formation is executed based on bitmap data subjected to the correction processing. <P>COPYRIGHT: (C)2009,JPO&INPIT |
