Image data processing methods, image data processing apparatuses and scanner systems
AssigneeHewlett-Packard Development Company, L.P.
InventorsMichael R. Rusnack, Ronald C. Slutz
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Abstract
The method of the invention corrects for a color shift in a color scan mechanism. The method initially senses plural component color data that is derived from the color scan mechanism. A determination is made of whether at least one color component value exhibits a value that exceeds a first threshold. The method also determines if another color component exhibits a value that exceeds a second threshold. If it is determined that both of the color components exceed the respective thresholds, then the one color component value is altered to a predetermined desired color value, so as to correct for color shift.
Claims13
An image data processing method comprising:
- providing a plurality of color component values for respective ones of a plurality of color components, wherein the color component values correspond to an image;
- first analyzing a first of the color component values with respect to a first threshold;
- second analyzing a second of the color component values with respect to a second threshold;
- adjusting the first of the color component values to an other value to correct for color shift responsive to the first analyzing determining the first of the color component values exceeds the respective first threshold and the second analyzing determining the second of the color component values exceeds the respective second threshold;
- and
- wherein the first and second thresholds are different.
Dependencies are inferred from the claim text.