| 摘要 |
<p>PROBLEM TO BE SOLVED: To configure a character plane so as to shorten time for expansion processing in expanding from post-compression image data to original image data.SOLUTION: An image compression part 6 compresses image data of a character image and that of a background image separately, includes, into a character image different from a character image that includes other character zones, a character zone of plural character zones included in a character image of each color, a character zone whose distance from another character zone is equal to or more than a given threshold, and compresses image data of the other character image separately from other image data.</p> |
