How Well Can Cameras Measure Color?
Video cameras find use in many automatic inspection applications, from checking the construction of automobiles to scanning microscope specimens for cancerous cells. Often it is important to inspect color as well as other attributes of a product; for example, the color of a car, of printed packaging material, of wallpaper and of foodstuffs.However, it is astonishingly difficult for video cameras to measure color with a degree of accuracy anywhere approaching that of the human eye. Successful...
Photonics Spectra, August 2002