Color separation using multiple point narrow band illumination f

Details Color separation using multiple point narrow band illumination f Color separation using multiple point narrow band illumination f

1996-08-05

1998-05-19

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2505781, 2502081, 356405, 348272, 348599, 358515, G01J 350

Patent

active

057539065

ABSTRACT:
Color scanner apparatus utilizing color separation with multiple point narrow band illumination from N-colors of LEDs may comprise a multicolor light source for successively illuminating an object with N different colors of light between about a color red and a color blue. A photosensor responsive to light reflected from the object converts the reflected light into sets of color image data signals corresponding to each of the N different colors. A color image data processing apparatus connected to the photosensor converts the sets of color image data signals corresponding to each of the N different colors into equivalent tristimulus values.

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Color Correction Using Principal Components, M.J. Vrhel and H.J. Trussell, Color Research And Applications Journal, vol. 17 #5, Oct. 1992, pp. 328-338.

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