Patent ID: 9241159
Filing Date: 2016-01-19
CPC Classification: H04N

Claim Text:
1. An encoding apparatus which divides an input image into a plurality of blocks and encodes the input image, comprising: one or more processors; a memory; and a computer program including program codes stored in the memory, which, when executed by the one or more processors, causes the one or more processors to perform operations of: determining a characteristic of an image of each of the plurality of blocks and detecting a block in which visual degradation is noticeable, wherein the block to be detected includes at least one of an edge block and a skin color block; determining a quantization parameter of each block based on a detection result of the detection; performing transformation including orthogonal transformation of each block and quantization using the determined quantization parameter; encoding a result of the performed transformation; and changing a reaction parameter to determine the quantization parameter according to the proportion of detected blocks to entire blocks of the input image.