PICTURE COMPRESSION/EXPANSION DEVICE

摘要

PURPOSE:To realize the compression/expansion device for a picture in which plural algorithms are selected depending on application and operated at a high speed. CONSTITUTION:A host CPU 1-1 controlling the entire device generates or decodes control information for compression or expansion processing, selects a proper program from a program for plural picture processing units stored on a hard disk 1-4 and transfers the program to a coding and decoding device 1-3. The coding and decoding device 1-3 down-loads the program and runs the program. Then the host CPU 1-1 extracts a picture or compressed data from the hard disk 1-4 and transfers it to a coding decoding device 1-3 sequentially. The coding decoding device 1-3 processes data sent according to the preceding program. Then the host CPU 1-1 extract sequentially the data processed by the coding decoding device 1-3 and outputs it to the hard disk 1-4.