Patent ID: 8265401

Claim:
An image compressing apparatus for compressing an input image having a plurality of color components, comprising: a first image segmentation section for segmenting said input image into a image for lossless compression to be subjected to lossless compression and a image for lossy compression to be subjected to lossy compression, based on pixel identification information indicating that respective pixels constituting said input image belong to which of a plurality of areas including a text area and a photograph area; a color determination section for determining color information that is used when said image for lossless compression is further segmented; a second image segmentation section for segmenting said image for lossless compression segmented by said first image segmentation section into a first image for lossless compression containing said color information determined by said color determination section and one or a plurality of second images for lossless compression excluding said first image for lossless compression; and an image compression section for performing respectively different compression process for each of said image for lossy compression segmented by said first image segmentation section, said first image for lossless compression and said second image for lossless compression segmented by said second image segmentation section.