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| 基于梯度压缩的色阶重建算法 | |
| 引用本文： | 李保其,陈文艺,陈瑞.基于梯度压缩的色阶重建算法[J].西安邮电学院学报,2011,16(6):24-26. |
| 作者姓名： | 李保其 陈文艺 陈瑞 |
| 作者单位： | 1. 西安邮电学院电子工程学院,陕西西安,710121 2. 西安邮电学院物联网与两化融合研究院,陕西西安,710121 3. 西安邮电学院通信与信息工程学院,陕西西安,710121 |
| 摘 要： | 为了能够在传统的显示设备上显示高动态范围图像,探讨基于梯度压缩的色阶重建算法,以其对高动态范围图像进行压缩。该算法通过对图像的梯度进行衰减来修改亮度图像的梯度域,并在修改后的梯度域上求解泊松方程,结果得到一个新的低动态范围图像。实验证明,该算法对动态范围进行压缩的同时能保留图像很好的细节,可避免传统方法所出现的光晕和梯... |
| 关 键 词： | 高动态范围图像 色阶重建 梯度压缩 泊松方程 |
Tone-mapping algorithm based on gradient compression |
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| LI Bao-qi,CHEN Wen-yi,CHEN Rui.Tone-mapping algorithm based on gradient compression[J].Journal of Xi'an Institute of Posts and Telecommunications,2011,16(6):24-26. | |
| Authors: | LI Bao-qi CHEN Wen-yi CHEN Rui |
| Affiliation: | LI Bao-qi1,CHEN Wen-yi2,CHEN Rui3(1.School of Electronic Engineering,Xi'an University of Posts and Telecommunications,Xi'an 710121,China,2.The Internet of Things and The Integration of The Two Academy,3.School of Communication and Information Engineering,China) |
| Abstract: | To display high dynamic range images on a conventional displayer,the tone-mapping algorithm based on gradient compression is introduced to conduct some compression.With this algorithm,the gradient of luminance image can be modified as the magnitude of gradient is attenuated,a Possion equation on the modified gradient is determined,and thus,a new low dynamic range image can be obtained.Experimental results show that,the introduced algorithm can make a compressed image with little information being lost;besides,it can avoids problems of halos or gradients reversals which appeared in conventional algorithm ever. |
| Keywords: | high dynamic range image tone-mapping gradient compression poission equation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |