Embedded Image Enhancement System Based on Dark Channel Prior

YIN Chuan-li; SUN Li-na; HAN Song-wei; LIU Zhong-yu; LI Zhi-qiang

doi:10.3788/YJYXS20112605.0673

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Embedded Image Enhancement System Based on Dark Channel Prior

Imaging Technology & Image Processing | 更新时间：2020-08-12

- Embedded Image Enhancement System Based on Dark Channel Prior
- Chinese Journal of Liquid Crystals and Displays Vol. 26, Issue 5, Pages: 673-676(2011)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20112605.0673
  CLC： TN27;TP311
- Received：28 March 2011，
  
  Revised：17 May 2011，
  
  Published Online：20 October 2011，
  
  Published：20 October 2011
- 稿件说明：
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刘敏, 戴曙光, 穆平安. 采用SOPC IP核技术实现液晶屏显示[J]. 液晶与显示, 2011,26(5): 665-672

LIU Min, DAI Shu-guang, MU Ping-an. Implementation of LCD Display with IP-Based SOPC Technology[J]. , 2011,26(5): 665-672
刘敏, 戴曙光, 穆平安. 采用SOPC IP核技术实现液晶屏显示[J]. 液晶与显示, 2011,26(5): 665-672 DOI： 10.3788/YJYXS20112605.0673.

LIU Min, DAI Shu-guang, MU Ping-an. Implementation of LCD Display with IP-Based SOPC Technology[J]. , 2011,26(5): 665-672 DOI： 10.3788/YJYXS20112605.0673.

摘要

针对彩色直方图均衡化算法颜色易失真的缺点

提出了一种基于暗原色先验的快速图像增强算法。首先求取全局暗原色图

然后估计透过率图和大气光成分图

最后根据大气散射模型恢复出图像中所有像素的灰度值。结合实际应用

以高性能DSP芯片TMS320DM6437作为中央处理器

结合现场可编程门阵列FPGA构成外围电路逻辑控制

搭建了嵌入式高速图像增强处理平台。基于该平台用真实图像验证了本文提出的算法。实验结果表明

本系统在提高色彩和对比度的同时

有效地还原了场景中物体的颜色

获得了较好的增强效果

同时算法运行时间少

能够满足工程项目的要求。

Abstract

According to the disadvantage of color distortion of color histogram equalization algorithm

a new image enhancement algorithm based on dark channel prior is presented. First

the dark channel image is done. Then the transmission map and the atmospheric optical components map are estimated. Finally the bright values of the pixels of the image are calculated according to the atmospheric model. An embedded high speed image enhancement processing system on high performance DSP TMS320DM6437 and FPGA was designed. Experimental results with real images shown that the system can improve the contrast and color of the image

restore the real color of the image

and effectively enhance the image

the running time of the program is shorter

so it can meet the requirements in the project.

关键词

Keywords

references

赵莹.基于单幅图像的去雾方法研究 . 天津:天津大学,2009.[2] 尹传历,张葆,戴明,等. 嵌入式雾天降质图像对比度增强系统的设计与实现 [J]. 电视技术, 2009, 33(12):90-92.[3] Menotti D, Najman L. Multi-histogram equalization methods for contrast enhancement and brightness preserving [J]. IEEE Trans. on Consumer Electronics, 2007, 53(3): 1186-1194.[4] 刘瑞剑.低能见度条件下图像清晰化处理研究 .太原:中北大学,2008.[5] 王志坚.基于大气模型的图像复原改进方法及应用 [J]. 计算机工程与应用, 2007,43(3):239-241.[6] 赵莹.基于单幅图像的去雾方法研究 . 天津:天津大学,2009.[7] 吴家伟,武春风,庹文波.红外图像实时显示增强系统设计 [J]. 光学精密工程, 2009,17(10):2612-2619.[8] 尹传历.基于双目立体视觉的三维测量技术研究 .长春:中科院长春光机所,2008.[9] 王彦臣,李树杰,黄廉卿. 基于多尺度Retinex的数字X光图像增强方法研究 [J]. 光学精密工程, 2006, 14(1):70-76.

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Related Institution

Department of Electronic Engineering, Tsinghua University Beijing

Key Laboratory of Airborne Optical Imaging and Measurement, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

University of Chinese Academy of Sciences

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Zhuhai City Polytechnic

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