Patent Document ID: 20100296730
Application ID: 12784313
Patent Status: 0

Claim One:
1. An image compressing apparatus, comprising: a receiving section that receives image data representing an image; a detecting section that detects an edge region of a text and/or line art in the image represented by the image data which is received by the receiving section; a binary image data generating section that generates a binary image data based on the image data received by the receiving section, in which a pixel value representing the edge region detected by the detecting section is different from a pixel value representing the other region; a lossless compressing section that performs lossless compression on the binary image data generated by the binary image data generating section; a lossy compressing section that performs lossy compression on the image data received by the receiving section; a color information generating section that generates color information of the binary image data which represents a color different from a color of the text and/or line art; and a compressed file generating section that generates a compressed file containing the binary image data on which the lossless compression has been performed by the lossless compressing section, the image data on which the lossy compression has been performed by the lossy compressing section, and the color information generated by the color information generating section.