Image encoding / decoding method, image encoding / decoding apparatus, and image encoding / decoding program recording medium

摘要

In the image coding method of the present invention, the variable length coding processing by the variable length code table which indicates the assignment of the variable length code to the quantization conversion coefficient obtained by the quantization processing after the processing such as the DCT for the digital image data, etc. is performed. In the comparison processing between the event obtained from the quantization transformation coefficient and the reference event contained in the variable length code table, conversion processing is performed to improve the possibility of performing variable length coding with good encoding efficiency .