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19 July 2013 Dynamic range optimization by flexible local contrast enhancement using luminance map
Chih-Hung Lin, Shu-Yuan Lin, Tzung-Her Chen
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Proceedings Volume 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013); 88780O (2013) https://doi.org/10.1117/12.2031720
Event: Fifth International Conference on Digital Image Processing, 2013, Beijing, China
Abstract
The original dynamic range of scene is generally limited to the capture sensors and display devices, and showed with the low dynamic range.Therefore, it is difficult to display the details in both dark and bright areas simultaneously. This paperadopted flexible thresholds combined with luminance map to improve the quality of image captured with unideal light distribution, and based on simple computation. The implementation effectively adjusts image contrast to both lowlight and highlight details while avoiding common quality loss due to halo-artifacts, desaturation and greyish appearance.
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Chih-Hung Lin, Shu-Yuan Lin, and Tzung-Her Chen "Dynamic range optimization by flexible local contrast enhancement using luminance map", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 88780O (19 July 2013); https://doi.org/10.1117/12.2031720
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KEYWORDS
Image enhancement
Image quality
Image contrast enhancement
Image processing
Digital image processing
Image compression
RGB color model
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