| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for compressing and restoring image data free from degradation of image quality caused by compression and decompression with high compression ratio. SOLUTION: In the image data compressing method, image elements contained in a digital image read from a sheet of paper are extracted (S02), each of the extracted image elements (51-53) is subjected to data compression by a compression method corresponding to the type of the image elements (S03-S05), and the compressed image element data (54-56) are stored. COPYRIGHT: (C)2011,JPO&INPIT
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