IMAGE PROCESSING METHOD AND DEVICE

摘要

An image processing method comprising the steps of: acquiring an image to be processed (102); calculating a combined colour index for each pixel in said image, based on the colours contributing to each pixel (108); calculating the gradient of said combined colour index for each pixel to obtain colour gradient change data for the total image; smoothing said gradient change data to highlight relevant colour changes on said image (110); sectoring said smoothed gradient colour change data to allow information to be extracted from each said sector of said image (111); and identifying at least one anchor point or sets of points pertaining to edges within one or more sectors (112).