Patent ID: 6985636

Claim:
The method of image processing, comprising the steps of: providing an original image as a matrix of discreet picture elements pixels, splitting said original image into n frequency channels, each of said n channels being presented by an image matrix of the same size as said original image, detecting edges, and assembling an output image from said n frequency channels taking said detected edges into account, wherein said splitting said original image is performed into a low frequency channel and n−1 high frequency channels, wherein said detecting edges is made by calculating in each of said n−1 high frequency channels for each pixel a correlation value between a processed pixel and its neighboring pixels followed by comparing said correlation value with correlation values for the corresponding, by their location in the image, pixels in other said high frequency channels and with a first threshold value for this channel; and forming weighting coefficients based on the results of said comparing for each pixel of each of n−1 high frequency channels, and said assembling said output image is made by summing each pixel from said low frequency channel with all the corresponding, by their location in the image, pixels of said n−1 high frequency channels multiplied by their weighting coefficients.