IMAGE COMPRESSOR, IMAGE PROCESSOR, IMAGE DECOMPRESSOR, IMAGE COMPRESSING METHOD, IMAGE PROCESSING METHOD, IMAGE DECOMPRESSING METHOD, PROGRAM AND RECORDING MEDIUM

摘要

PPROBLEM TO BE SOLVED: To provide an image compressor for generating compressed image data which outputs thumbnails of the image data at a high speed, without increasing a data capacity for the compressed image data. PSOLUTION: In the image compressor 20, an image reader 21 reads image data, a thumbnail setting unit 22 sets thumbnail information, then an image quality compressor 23 compresses images, a thumbnail information adder 24 adds thumbnail information according to the setting, and a code generator 25 generate code data. The thumbnail information use one or a plurality of image resolution information, image position information, image component information, image quality information, and image sub-band information. PCOPYRIGHT: (C)2004,JPO&NCIPI