| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem of an image forming apparatus which converts an original image into a half-toning image to form an image that a half-toning image formed by determining an order of priority between dots regularly to create a threshold matrix has conspicuous lines rougher than original dot lines at specific output gradation, thus generating an angular pattern different from original dots. <P>SOLUTION: An image forming apparatus 10 comprises: a threshold matrix creation part 31; and a comparison part 38. The threshold matrix creation part 31 gives an order of grayscale to all pixels especially on the basis of a result of a pixel order determination means 34 and a determination result of dot order of priority determination means 35, and standardizes the pixel value according to input grayscale number. Thus, the half-toning image formed by the image forming apparatus 10 does not have a problem of conspicuous lines rougher than original dot lines at specific output gradation and generation of an angular pattern different from original dots. <P>COPYRIGHT: (C)2013,JPO&INPIT |
