Farbtrennung unter Verwendung einer Mehrpunkt-Schmalbandbeleuchtung von Lichtquellen mit N Farben

摘要

Colour scanner apparatus utilises sequential illumination of an object from sets of LEDs, providing for example four different colours of light between red and blue photosensors convert the reflected light into sets of colour image data signals corresponding to the N different colours. A colour image data processing apparatus converts the sets of colour image data signals into equivalent tristimulus values.