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题名:
A method of contrast enhancement processing on wide-bits image
作者: Peng, Xiang1,2; Xu, Zhiyong1; Qi, Xiaoping1
出版日期: 2012
会议名称: Proceedings of SPIE: Optoelectronic Imaging and Multimedia Technology II
会议日期: 2012
DOI: 10.1117/12.999430
通讯作者: Peng, X.
中文摘要: In order to obtain high-quality images in a project, modern cameras with wide-bits (12, 14 or 16 bits width) are usually used to acquire enough original information. Nevertheless, some kinds of data selection and transform processing are necessary to display such images on PC (8 bits width). Besides, the output image should include both high general contrast and clear details. This paper proposed a method with two major steps: for the first step is on the basis of partially overlapped sub-block histogram equalization (POSHE), and change the way of equalizing sub-block image, separate each sub-block recursively with different gray ranges. The second step is taking a kind of pseudo-color processing based on HIS space to enhance the visual effects, so that the image has rich layers and consistent with human's perception. Experimental results show that the algorithm could keep the local details and the mean of the original brightness at the same time, enhanced the image effectively. Considered the adaptability on different scenarios, different objectives, and a reasonable amount of time complexity, this method could adapt the requirements of practical engineering applications. © Copyright SPIE.
英文摘要: In order to obtain high-quality images in a project, modern cameras with wide-bits (12, 14 or 16 bits width) are usually used to acquire enough original information. Nevertheless, some kinds of data selection and transform processing are necessary to display such images on PC (8 bits width). Besides, the output image should include both high general contrast and clear details. This paper proposed a method with two major steps: for the first step is on the basis of partially overlapped sub-block histogram equalization (POSHE), and change the way of equalizing sub-block image, separate each sub-block recursively with different gray ranges. The second step is taking a kind of pseudo-color processing based on HIS space to enhance the visual effects, so that the image has rich layers and consistent with human's perception. Experimental results show that the algorithm could keep the local details and the mean of the original brightness at the same time, enhanced the image effectively. Considered the adaptability on different scenarios, different objectives, and a reasonable amount of time complexity, this method could adapt the requirements of practical engineering applications. © Copyright SPIE.
收录类别: Ei
语种: 英语
卷号: 8558
ISSN号: 0277786X
文章类型: 会议论文
页码: 85581S
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7697
Appears in Collections:光电探测与信号处理研究室(五室)_会议论文

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作者单位: 1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan, 610209, China
2. Graduate University, Chinese Academy of Sciences, Beijing, 100039, China

Recommended Citation:
Peng, Xiang,Xu, Zhiyong,Qi, Xiaoping. A method of contrast enhancement processing on wide-bits image[C]. 见:Proceedings of SPIE: Optoelectronic Imaging and Multimedia Technology II. 2012.
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