IMAGING PROCESSING APPARATUS AND METHOD

摘要

An image processor corrects for color shading and lens shading separately. The image processor may also provide dynamic range correction between color shading and lens shading correction. Whichever operation, color shading correction or lens shading correction employs lower correction values may be employed first in a sequence of operations that includes color shading, dynamic range, and lens shading corrections.

主权项

1. An image processing apparatus comprising:
a pixel array comprising a first pixel group having a first exposure time and a second pixel group having a second exposure time, and the pixel array configured to convert image signals into electrical signals; an analog-digital converter (ADC) configured to convert the electrical signals into digital signals; a color shading correction unit configured to correct a color difference of the digital signals and generate color-corrected digital signals; an image reconstruction unit configured to reconstruct the color-corrected digital signals and generate reconstructed color-corrected digital signals; and a lens shading correction unit configured to perform lens shading correction on the reconstructed color-corrected digital signals.