| Summary: | 碩士 === 國立成功大學 === 電腦與通信工程研究所 === 93 === When capturing scene in a real world, traditional display devices would encounter a problem of representing high contrast. It is because the part in the dimmest region or in the brightest region is almost invisible. The causes of this invisible part can be ascribed to two limits—the brightness adaptation of eye and the architecture of display devices. To overcome this problem, tone reproduction algorithms have been designed to clamp the contrast and conform to human visual system.
In this research, we proposed a new algorithm for tone reproduction problems. This new algorithm is based on the level set method and Barladian’s algorithm; we modify the integrated algorithm with adding three more steps. These three steps are (1) adaptive gain control, (2) dodging-and-burning, and (3) local contrast enhancement. With this modified algorithm, the reproduced images not only visibly represents in low dynamic range, but also conserves and reveals more details.
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