| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image generating apparatus for generating a pattern improving copying suppression effect of an original since readability of a character drops in the case of copying and for synthesizing the pattern with an original image. <P>SOLUTION: An image forming apparatus decides and generates a pattern consisting of a latent image portion and a background portion in accordance with a size of the character included in an original image when obfuscation printing is performed during copying, and synthesizes a tint block image including the pattern with the original image. When the synthesized original image of the tint block image (pattern) is printed and the original being a printed matter is copied by the image forming apparatus, the image of the original is copied in a duplication, a pattern consisting of the reproduced latent image portion and the background portion which is not reproduced appears and high contrast occurs between the latent image portion and the background portion. When the duplication is viewed, the contrast of the latent image portion and the background portion in the pattern is largely perceived, the contrast of the character and the background is difficult to be perceived and the character is difficult to be read. <P>COPYRIGHT: (C)2012,JPO&INPIT |
