Apparatus and method for adaptively interpolating a full color i

Television – Camera – system and detail – With single image scanning device supplying plural color...

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348266, H04N 907

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active

053829760

ABSTRACT:
Adaptive interpolation is performed by apparatus operating upon a digitized image signal obtained from an image sensor having color photosites that generate a plurality of color values, but only one color per photosite. A digital processor obtains gradient values from the differences between luminance values in vertical and horizontal image directions. The gradient values are compared to a programmable threshold in order to select one of the directions as the preferred orientation for the interpolation of additional luminance values. The interpolation is then performed upon values selected to agree with the preferred orientation.

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patent: 5040064 (1991-08-01), Cok
Copending U.S. Patent Application entitled "Apparatus and Method for Adaptively Interpolating a Full Color Image Utilizing Chrominance Gradients", in the name of Claude Laroche and Mark Prescott on even date herewith.
Kodak Professional DCS 200 Digital Camera System, Programmer's Reference Manual, Dec. 1992.

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