Illumination Processing in Face Recognition
Yongping Li, Chao Wang, Xinyu Ao · InTech eBooks · 2010
The formation of camera imaging and its difference from the human visual systemWith the camera invented in 1814 by Joseph N, recording of human face began its new era.Since we do not need to hire a painter to draw our figures, as the nobles did in the middle age.And the machine recorded our image as it is, if the camera is in good condition.Currently, the imaging system is mostly to be digital format.The central part is CCD (charge-coupled device) or CMOS (complimentary metal-oxide semiconductor).The CCD/CMOS operates just like the human eyes.Both CCD and CMOS image sensors operate 11 www.intechopen.