IMAGE ENCODING METHOD AND IMAGE DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an image encoding method that always efficiently encode the number of coefficients other than 0 included in a block to which orthogonal transformation has been applied regardless of the quality of an object image.

SOLUTION: When one of two coded blocks located above and to the left of the current block is located outside a slice including the current block, the predictive value of the number of non-zero coefficients included in the current block is determined based on the total number of non-zero coefficients included in the other of the two coded blocks.

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