COLOR SHADING CORRECTION USING COLOR CHANNEL CONSISTENCY

摘要

An imaging system includes a color correction circuit configured to perform in color shading correction of an image independent of lens shading correction of the image. A method for anti-shading correction of an image includes correcting, by a color correction circuit, for color shading of the image independent of lens shading correction of the image.

主权项

1. An imaging system comprising:
a color correction circuit configured to perform color shading correction of an image independent of lens shading correction of the image, the color shading correction of the image being based on estimated color consistency models for red and blue color channels of the image; wherein
the estimated color consistency model for the red color channel includes a common profile for the red color channel and a scaling factor for the red color channel,the estimated color consistency model for the blue color channel includes a common profile for the blue color channel and a scaling factor for the blue color channel, andthe scaling factors for the red and blue color channels correspond to an estimated color temperature for the image.