| 基于Retinex理论的压缩域图像增强方法研究 |
| |
| 引用本文： | 汪荣贵,张新龙,张璇,方帅.基于Retinex理论的压缩域图像增强方法研究[J].计算机研究与发展,2011,48(2):259-270. |
| |
| 作者姓名： | 汪荣贵 张新龙 张璇 方帅 |
| |
| 作者单位： | 合肥工业大学计算机与信息学院,合肥,230009 |
| |
| 基金项目： | 国家自然科学基金项目，安徽省自然科学基金项目 |
| |
| 摘 要： | 针对现有压缩域图像增强算法在提高图像对比度时,存在不能很好地增强图像细节及保持色彩信息的局限性,提出一种新的基于Retinex理论的DCT压缩域图像增强算法.该算法以Retinex理论为基础,将DCT系数分为入射分量(DC系数)和反射分量(AC系数),通过对DC系数进行动态范围调整,对AC系数进行细节增强调整,并使用阈...
|
| 关 键 词： | 图像增强 压缩域 Retinex理论 DCT变换 YCbCr色彩空间 |
Image Enhancement in the Compressed Domain Based on Retinex Theory |
| |
| Wang Ronggui,Zhang Xinlong,Zhang Xuan,Fang Shuai.Image Enhancement in the Compressed Domain Based on Retinex Theory[J].Journal of Computer Research and Development,2011,48(2):259-270. |
| |
| Authors: | Wang Ronggui Zhang Xinlong Zhang Xuan Fang Shuai |
| |
| Affiliation: | Wang Ronggui,Zhang Xinlong,Zhang Xuan,and Fang Shuai(School of Computer and Information,Hefei University of Technology,Hefei 230009) |
| |
| Abstract: | Existing image enhancement algorithms in the compressed domain can not preserve the details and color information when enhancing the contrast of images.They mostly treat the DCT coefficients uniformly using the same strategy,or can not inhibit artifacts if treating the coefficients differently.A new image enhancement algorithm in the DCT compressed domain based on Retinex theory is proposed.The algorithm divides DCT coefficients into the illumination component(DC coefficients) and the reflection component(A... |
| |
| Keywords: | image enhancement compressed domain Retinex theory discrete cosine transform YCbCr color space |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
