| 摘要 |
PURPOSE:To improve the transmitting time of data and the accumulating efficiency of the data by executing plural compressing actions with a different compressing system in parallel and compressing image data by the compressing system with a satisfactory compressing efficiency. CONSTITUTION:The image data to be compressed, which are inputted from an image input part 10 are stored into a MEMO. The stored image data are transferred in parallel to compressing circuits 1-N, and the compression by respective systems is executed by respective compressing circuits 1-N. At such a time, respective compressing circuits 1-N store the compressed data to a MEMI and the data length after compression is counted by a counter 21. The completion of all compressing systems is awaited, an MPUO compares the counting value of respective compressing systems and the counting value determines the minimum compressing system. Thus, by transferring the compressed data to the MEMO with the determined compressing system, the best compressing image data can be obtained.
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