FIELD: information technologies.
SUBSTANCE: length of transition at jumps in brightness is reduced; filtration with adaptive smoothing filter is done; repeatedly length of transition is reduced at jumps in brightness; local contrast is increased at the edges of jumps in brightness; global contrast is increased.
EFFECT: development of new method that increases efficiency of raster removal from screened scanned images, at the same time global and local contrast should be preserved at sufficient sharpness of image.
4 cl, 10 dwg
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