Tone Reproduction Algorithm Design for Digital Still Cameras
碩士 === 國立臺灣師範大學 === 應用電子科技研究所 === 95 === Tone reproduction attempts to scale or map high dynamic range image data such that the resulting image has preserved the visual brightness and better contrast impression of the original scenes. In this paper, we propose a systematic approach to tone reproduct...
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| Format: | Others |
| Language: | zh-TW |
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2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/96294196486225894775 |
| Summary: | 碩士 === 國立臺灣師範大學 === 應用電子科技研究所 === 95 === Tone reproduction attempts to scale or map high dynamic range image data such that the resulting image has preserved the visual brightness and better contrast impression of the original scenes. In this paper, we propose a systematic approach to tone reproduction by histogram equalization of macro edges. The proposed approach has been integrated with a robust image processing pipeline, and the experimental results show that the proposed algorithm is very stable for accommodating diverse illuminants and scenes.
In addition to running simulation on a computer, we also have ported the algorithm to an embedded system development kit. Several modifications are implemented such as changing the variables to integer type, and speeding up some time consuming operations by using lookup tables (LUTs.) The experimental results show that the proposed algorithm can be realized on a typical embedded system whose computation power is typically lower than a personal computer.
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