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Color Processing in Digital Cameras
November/December 1998 (vol. 18 no. 6)
pp. 20-30
Digital cameras are fun to use because they produce a finished image seconds after the shutter button is pressed. But in those few seconds much has been done to creat that full-color rendering. Even more was done during the camera design process long before the camera ever reaches the user's hands. This article presents the details of color processing that is performed on the raw data from the camera's sensor. Color filter array interpolation, color calibration, antialiasing, infrared rejection and white point correction are discussed. Also, it is explained how to design certain critical camera elements, such as the color filter array and what are the pitfalls to avoid. Finally, the entire color processing chain is put in perspective by examining how these components are assembled in a commercially available digital camera.
Index Terms:
color filter array, color filter array interpolation, color calibration, antialiasing, infrared rejection, white point correction
Citation:
Jim Adams, Ken Parulski, Kevin Spaulding, "Color Processing in Digital Cameras," IEEE Micro, vol. 18, no. 6, pp. 20-30, Nov.-Dec. 1998, doi:10.1109/40.743681
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