Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 27, 2007
Patent Application Number
11328749
Date Filed
January 9, 2006
Patent Primary Examiner
Patent abstract
A method of automatically adjusting sharpening weighting value in an image sharpening process is disclosed. The method utilizes scanning a correction board having a black reference region, a white reference region and a plurality of line pair regions to aid the calculations of the modulation transfer function value and noise value. The method automatically adjusts weighting values of a sharpening function and avoids accompanying noise increase simultaneously in an image sharpening process performed in an image processing apparatus and thereby high quality images with high signal/noise ratio can be provided.
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