METHOD AND APPARATUS FOR IMAGE PROCESSING BASED ON PERCEPTUAL CHARACTERISTIC

摘要

Disclosed are a method and an apparatus for processing an image such as encoding and decoding an image. The apparatus for processing an image performs modeling for multi-level JND thresholds and multi-level JND intervals, and derives a difference value between an input image and an original image. In addition, the apparatus for processing an image determines which of the multi-level JND intervals and the multi-level JND thresholds corresponds to an input image by using the derived difference value, and quantizes the input image by using the determined JND threshold.