Disclosed are embodiments of an apparatus comprising an image sensor
comprising a pixel array including a plurality of pixels, a detection
circuit coupled to the pixel array to detect potential white/black pixel
defects in the pixel array, a correction circuit coupled to the detection
circuit to correct potential white/black pixel defects detected by the
detection circuit. The apparatus further comprises a digital signal
processor coupled to the image sensor, the digital signal processor
comprising a memory to have therein a list of defective pixels in the
pixel array, and a processor coupled to the memory to cross-check each
pixel against the list of defective pixels and correct the digital value
of each pixel found in the list of defective pixels. Other embodiments
are disclosed and claimed.