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Proceedings Paper

Color reproduction software for a digital still camera
Author(s): Bong Sun Lee; Du-Sik Park; Byung Deok Nam
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Paper Abstract

We have developed a color reproduction software for a digital still camera. The image taken by the camera was colorimetrically reproduced on the monitor after characterizing the camera and the monitor, and color matching between two devices. The reproduction was performed at three levels; level processing, gamma correction, and color transformation. The image contrast was increased after the level processing adjusting the level of dark and bright portions of the image. The relationship between the level processed digital values and the measured luminance values of test gray samples was calculated, and the gamma of the camera was obtained. The method for getting the unknown monitor gamma was proposed. As a result, the level processed values were adjusted by the look-up table created by the camera and the monitor gamma correction. For a color transformation matrix for the camera, 3 by 3 or 3 by 4 matrix was used, which was calculated by the regression between the gamma corrected values and the measured tristimulus values of each test color samples the various reproduced images were displayed on the dialogue box implemented in our software, which were generated according to four illuminations for the camera and three color temperatures for the monitor. An user can easily choose he best reproduced image comparing each others.

Paper Details

Date Published: 1 April 1998
PDF: 7 pages
Proc. SPIE 3302, Digital Solid State Cameras: Designs and Applications, (1 April 1998); doi: 10.1117/12.304575
Show Author Affiliations
Bong Sun Lee, Samsung Aerospace Industries, Ltd. (United States)
Du-Sik Park, Samsung Aerospace Industries, Ltd. (South Korea)
Byung Deok Nam, Samsung Aerospace Industries, Ltd. (South Korea)


Published in SPIE Proceedings Vol. 3302:
Digital Solid State Cameras: Designs and Applications
George M. Williams, Editor(s)

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