Method and device for processing image data

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A method for processing image data classifies pixels into one or more group based on pixel values of pixels included in an image, determines rarity of each group, which is level of rareness of pixel values of each group, determines cohesion of each group which is proximity of pixels of each group, determines center density of each group which is a proximity of pixels of each group from the center of an image, and determines importance of each group based on at least one among the determined rarity, cohesion, and center density.(S220) Determining rarity of each group, which is level of rareness of pixel values of each group, (S230) Determining cohesion of each group which is proximity of pixels of each group(S240) Determining center density of each group which is a proximity of pixels of each group from the center of an image, (S250) Determining importance of each group based on at least one among the determined rarity, cohesion, and center density(S210) Classifying pixels into one or more group based on pixel values of pixels included in an image(BB) End(AA) StartCOPYRIGHT KIPO 2015