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AssigneeSharp Kabushiki Kaisha
InventorHideyoshi Yoshimura
Estimating the term…
When compressing continuous tone bit map image data, the image compression section of the image compressing apparatus segments the continuous tone bit map image data into bit map image data for lossy compression, index image data for lossless compression and bit map image data for lossless compression based on pixel identification information data. The lossy compression section of the image compression section performs lossy compression process according to the JPEG method for the bit map image data for lossy compression, and the first lossless compression section thereof performs lossless compression process according to the JBIG method for the index image data for lossless compression. Furthermore, the second lossless compression section thereof performs lossless compression process according to the JPEG-LS method for the bit map image data for lossless compression.
An image compressing apparatus for compressing an input image having a plurality of color components, comprising:
An image compressing method for compressing an input image having a plurality of color components, comprising:
An image decompressing apparatus for decompressing a compressed image, comprising:
An image decompressing method for decompressing a compressed image, comprising:
A non-transitory computer readable medium on which a computer program for causing a computer to perform compression process for an input image having a plurality of color components are recorded so as to be readable by said computer, said computer programs comprising:
A non-transitory computer readable medium on which computer programs for causing a computer to perform decompression process for a compressed image are recorded so as to be readable by said computer, said computer programs comprising:
Dependencies are inferred from the claim text.