IMAGE ENCODING DEVICE AND METHOD

摘要

An image encoding device of the present invention includes: a prediction processing unit (22) which performs prediction processing on m components among N components which constitute a quantized block; a first CBP judging unit (23) which judges whether or not (N-m) components among the N components include a non-zero component in a first operation mode, and to judge whether or not (N-n) components among the N components include a non-zero component in a second operation mode; a second CBP judging unit (24) which judges whether or not the m components on which the prediction processing has been performed by the prediction processing unit (22) include a non-zero component in the first operation mode, and to judge whether or not n components include a non-zero component in the second operation mode; and a CBP generating unit (25) which generates a CBP code indicating whether or not all the components of the block are 0 components based on the judgments made by the first judging unit (23) and second judging unit (24).