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Macro uniformity correction for x-y separable non-uniform

  • US 7,038,816 B2
  • Filed: 03/29/2004
  • Issued: 05/02/2006
  • Est. Priority Date: 12/15/2000
  • Status: Expired due to Fees
First Claim
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1. A system for correcting raster data for spatial non-uniformities within an image, comprising:

  • a sensor for detecting a plurality of the raster data as a function of respective positions within the image;

    a processor, which receives the raster data from the sensor, for processing the raster data to correct the spatial non-uniformities in the image; and

    a memory device for storing a set of tone reproduction curves, respective ones of the tone reproduction curves being accessed by the processor as a function of the positions of the raster data for generating respective correction values to compensate for the non-uniformities, the processor applying the correction values to the respective raster data for generating corrected raster data.

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