| 摘要 |
An image processing apparatus includes: a change processing unit configured to execute change processing of changing a pixel-number ratio S for distortion-free image data expressing a distortion-free image to acquire distorted image data expressing a distorted image having the pixel-number ratio of p×S; and a halftone processing unit configured to execute halftone processing for generating dot data for the distorted image data having the pixel-number ratio of p×S by using a dither matrix so as to generate distorted dot data expressing a distorted dot image having the pixel-number ratio of p×S, wherein a distortion-free dot image is to be obtained by enlarging the distorted dot data in at least the first direction, the distortion-free dot image having the pixel-number ratio S, and wherein a screen angle of the dither matrix is set to be about arctan((tan &thetas;)/p)) when a screen angle in the distortion-free dot image is &thetas;. |
