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Design of a Low-Cost Gamma Corrector with an Optimized Piecewise Linear Approximation Method

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We have developed a low-cost gamma corrector for a Charge-Coupled Device (CCD) camera and have proposed an optimized piecewise linear approximation method. We have improved and optimized the conventional methods. To simplify hardware after gamma correction, the proposed corrector compresses dynamically the 10-bit CCD image to 8-bit data. The optimized segmentation method minimizes the size of the look-up table (LUT) and the estimation error. To support diverse devices and multi-standard video formats, the proposed compensator is capable of correcting various gamma coefficients such as 0.37, 0.40, 0.43, 0.45, 0.47 and 0.50.
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Document Type: Research Article

Publication date: December 1, 2013

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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