High dynamic range imaging by fusing multiple raw images and tone reproduction

被引:27
作者
Kao, Wen-Chung [1 ]
机构
[1] Natl Taiwan Normal Univ, Dept Appl Elect Technol, Taipei, Taiwan
关键词
high dynamic range imaging; tone reproduction; image fusion; and contrast enhancement;
D O I
10.1109/TCE.2008.4470017
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents an integrated color imaging system for taking images in extremely high dynamic range scenes. The system first fuses several differently exposed raw images to acquire more intensity information. The effective dynamic range of the image raw data can be extended to 256 times if five differently exposed images are fused. Then it runs edge detection iterations to extract the image details in different luminance levels. The proposed tone reproduction algorithm equalizes the histogram of the extracted fine edges which tends to assign larger dynamic range for highly populated regions. Finally, the local contrast enhancement is performed to further refine the image details. The experimental results show that the proposed high dynamic range imaging system has good performance on both tone and color reproduction(1).
引用
收藏
页码:10 / 15
页数:6
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