Flat field correction on CMOS cameras – for better or for worse?

Flat-Field Correction (FFC) can be done with both CCD and CMOS-based cameras to correct for sensor artifacts, lens artifacts, and illumination artifacts (shading).  The purpose of flat field correction is to ensure image uniformity regardless of exposure. With CMOS sensor-based cameras, FFC is especially important to minimize or even remove sensor artifacts and improve the…