CodePudding user response:
Human eye perception of color is mainly cone, cone cell is divided into three kinds, respectively to different wavelengths of the electromagnetic wave is most sensitive to wavelengths is probably about 564 nm to 534 nm and 420 nm, different wavelengths of the electromagnetic wave into the human eye, three types of cones activity is different, and then three kinds of cones convey their feelings to the brain, by this time the brain to distinguish each kind of stimulus, will generate a kind of color,Camera image sensor components are CCD (Charge Coupled Device), namely the charge-coupled Device, has high sensitivity, small distortion, long life, shock resistant, resistance to magnetic fields, small volume, no ghosting effect etc, it can turn light into electrical charges and will Charge storage and transfer, also can remove the storage Charge voltage will vary, the foreground objects reflect light, spread to the lens, the lens on the CCD chip, CCD according to corresponding Charge accumulation on the strength of the light, the periodic discharge, said these pictures of electrical signals, after preliminary into the circuit amplifier, AGC automatic gain control, by the analog-to-digital conversion IC digital signal processing (DSP) to the image,