Multi-exposure image fusion using tone reproduction

• Main Authors: Bo-Yi Guo, 郭柏易
• Other Authors: 周昌民
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/81661073819289386294

碩士 === 清雲科技大學 === 電子工程所 === 99 === The high dynamic range (HDR) imaging is a technique that allows saving intact luminance information of an image in real scene. The main disadvantage of the HDR imaging is that it requires huge memory storage and may cause difficulties in transmission. Thus, most digital cameras in current market use low dynamic range (LDR) imaging technique for image storage. However, the LDR image lacks the ability to perform intact luminance information of an image in real scene. Many researchers have developed techniques on merging several LDR images to produce a new LDR image with the quality of a HDR image. This paper proposes to fuse multiple exposure low dynamic range (LDR) images by using tone reproduction method. The produced image is another LDR image which has the visual quality of a high dynamic range (HDR) image. The input is a series of multiple exposure images of the same scene. Each input image is equally segmented to several blocks. For each block, the one with the best visual effect is selected from one of these input images to integrate a new image. A tone reproduction algorithm is used to fuse these selected blocks to form an image with the visual effect of a HDR image.