PURPOSE: To obtain a compression encoder capable of equalizing the processing time of plural decoding means, respectively, and capable of optimizing the reduction of decode processing time.

CONSTITUTION: The compression encoder is equipped with a control information calculation circuit 26. The control information calculation circuit 26 outputs data corresponding to both the serial number of a specific code representing the initialization of DPCM processing for the DC component of a prediction encoder 24 and address data corresponding to the insertion position of the specific code represented at a position from the forefront of the data after Huffman encoding are inputted to memory 27. The amount of Huffman encode data by one picture in the memory 27, the serial number data of the specific code, and the address data at a specific code insertion position are supplied to a readout initial position calculation circuit 29. the readout initial position calculation circuit 29 divides the amount of Huffman encode data by the number two of decoder circuits 39, 40, and calculates data amount allocated to the respective decoder circuits 39, 40 from the quotient of division.