METHOD OF PROCESSING AN IMAGE

摘要

The invention relates to a method for processing an image divided into blocks of pixels comprising the steps of: detecting (10), for each block, a largest sub-block whose pixels have an equal luminance value; identifying (12), for each block, if the detected largest sub-block is or is not a natural texture; calculating (14), for each block, a weighted luminance difference between the detected largest sub-block and neighboring pixels; determining (16), for each block, a block blockiness level on the basis of the number of pixels within the detected largest sub-block, of said identification step and of said weighted luminance difference; and processing (20) the image on the basis of the block blockiness levels.