08330772 is referenced by 27 patents and cites 92 patents.

Various techniques are provided herein for processing raw image data in front-end processing logic of an image signal processing system. In one embodiment, the front-end processing logic includes a statistics processing unit configured to process raw image data acquired by an image sensor to obtain one or more sets of statistics. The statistics processing unit may first correct defective pixels in the raw image data and then correct lens shading errors in the raw image data prior to extracting the statistics information. In certain embodiments, black level compensation may be applied between the defective pixel correction and lens shading correction steps, and inverse black level compensation may be applied between the lens shading correction step and the extraction of the statistics information. The acquired statistics information may be utilized by an image signal processing pipeline for converting the raw image data into a color (e.g., RGB) and/or luma (e.g., YCbCr) image.

Title
Image signal processor front-end image data processing system and method
Application Number
12/789810
Publication Number
8330772 (B2)
Application Date
May 28, 2010
Publication Date
December 11, 2012
Inventor
Jeffrey E Frederiksen
Sunnyvale
CA, US
Guy Cote
San Jose
CA, US
Agent
Fletcher Yoder PC
Assignee
Apple
CA, US
IPC
G09G 5/00
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