METHOD AND APPARATUS FOR ENCODING AND METHOD AND APPARATUS FOR DECODING

摘要

The present invention relates to a method and apparatus for encoding an image and a method and apparatus for decoding an image. Furthermore, the present invention relates to a computer-readable recording medium on which a program configured to execute the encoding method or the decoding method according to an embodiment of the present invention on a computer has been recorded. The encoding apparatus for encoding an image comprises: a communication unit which receives device information from a device; and a processor which encodes an image by using image information and the device information. The processor processes the image based on at least one of the device information and the image information, determines a non-encoding region, a block-based encoding region, and a pixel-based encoding region of the image based on at least one of the device information and the image information, performs block-based encoding on the block-based encoding region by using a quantization parameter determined based on at least one of the device information and the image information, performs pixel-based encoding on the pixel-based encoding region, includes a processor generating an encoded image by entropy-encoding a symbol determined by the block-based encoding or the pixel-based encoding, and generates a bit stream including the encoded image, region information about the block-based encoding region and the pixel-based encoding region, and quantization information about the quantization parameter. The communication unit transmits the bit stream to the device.