Patent ID: 6057935
Filing Date: 2000-05-02
Classification: G06T

Abstract:
A method of producing an enhanced raster image from a raster image having a plurality of pixels with respective initial intensity values, the method comprising:deriving a set of initial sharpness values from the initial intensity values;mapping the initial sharpness values to a set of corresponding enhanced sharpness values, wherein as a result of the mapping one or more of the enhanced sharpness values are greater than the corresponding initial sharpness values and one or more of the enhanced sharpness values are less than the corresponding initial sharpness values; andderiving a set of enhanced intensity values from the enhanced sharpness values to produce an enhanced raster image, whereby a user can selectively sharpen some regions of the raster image and can selectively blur other regions of the raster image and thereby produce the enhanced raster image.