IMAGE ENCODING / DECODING METHODS USING COLOR PALETTE MODES AND RECORDING MEDIA

Abstract

The invention relates to a method and storage medium for encoding / decoding images using a color palette mode. Prediction using a color palette mode can be made for the target block. Different types of predictions can be made for the target block, and the signaled information portions from the encoder to the decoder can be changed depending on the type of prediction made for the target block. The determination of signaled information portions can be optimized for the case where a color palette mode is used for the target block, and thus the encoding and decoding performance of the image can be improved.