METHODS FOR ENCODING AND DECODING IMAGES AND COMPUTER-READABLE MEDIA

Abstract

Image decoding refers to methods for decoding and encoding images and media that can be read by a computer. These image decoding methods include: determining whether a color reproduction mode is supported for the current tonal range in the image; sampling the tonal range corresponding to the current tonal range to provide feedback on whether the color reproduction mode is supported for the current tonal range; acquiring correlation information for the color reproduction mode based on a predefined reference area; and predicting the current tonal range by applying this correlation information to the sampled tonal range.