| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of preventing increase of code amount in a scaling list.SOLUTION: The image processing apparatus sets a coefficient to be positioned at the top of a quantization matrix by adding a replacement difference coefficient which is a difference between a replacement coefficient to be used when replacing a coefficient positioned at the top of the quantization matrix and the coefficient positioned at the top of the quantization matrix, to the coefficient positioned at the top of the quantization matrix. The quantification data is subjected to an inverse quantization by up-converting the set quantization matrix and by using the up-converted quantization matrix in which the coefficient positioned at the top of the up-convert quantization matrix is replaced with a replacement coefficient. This disclosure is applicable to image processors.SELECTED DRAWING: Figure 7 |
