| 摘要 |
[Problem] To suppress an increase in the amount of encoding when the number of quantization matrices increases. [Solution] Provided is an image processing device equipped with: a selection unit that selects a transformation unit used for an inverse orthogonal transformation of image data to be decoded from among a plurality of transformation units having differing sizes; a generation unit that generates a second quantization matrix corresponding to a transformation unit having a second size from a first quantization matrix corresponding to a transformation unit having a first size; and an inverse quantization unit that, when the transformation unit having the second size is selected by the selection unit, performs inverse quantization of transformation coefficient data of the image data using the second quantization matrix generated by the generation unit. |
