全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电子学报  2012 

一种改进的视频画质增强算法及VLSI设计

DOI: 10.3969/j.issn.0372-2112.2012.08.025, PP. 1655-1658

Keywords: 色彩空间,画质增强,动态范围调整

Full-Text   Cite this paper   Add to My Lib

Abstract:

由于视频图像多样化,目前尚无较好的增强方法适应视频画质增强.本文提出了一种改进的数字视频画质增强算法,并进行了硬件电路的设计.与传统的基于直方图均衡的方法不同,首先在YUV色彩空间对输入图像的信息进行判断分类和对比度调整,然后对调整后的图像在RGB色彩空间下进行动态范围调整,并在HSV色彩空间下进行必要的亮度修正和色饱补偿.采用Verilog语言进行了算法的各模块电路设计,并在搭建的FPGA视频验证平台上进行了验证.实验结果表明,论文提出的画质增强算法能够适应各种不同场景的图像,处理后的图像明亮清晰、色彩逼真.

References

[1]  K Zuiderveld.Contrast Limited Adaptive Histogram Equalization[M].Chapter VIII.5,Graphics Gems IV,Cambridge,MA,Academic Press,1994.474-485.
[2]  J A Stark.Adaptive image contrast enhancement using generalizations of histogram equalization[J].IEEE Transactions on Image Processing,2000,9(5):889-896.
[3]  S-D Chen,A Ramli.Contrast enhancement using recursive mean-separate histogram equalization for scalable brightness preservation[J].IEEE TCE,2003,49(4):1301-1309.
[4]  汪荣贵,张璇,张新龙,等.一种新型自适应Retinex图像增强方法研究[J].电子学报,2010,38(12):2933-2936. Wang Ronggui,Zhang Xuan,Zhang Xinlong,et.al.A novel adaptive retinex algorithm for image enhancement[J].Acta Electronica Sinica,2010,38(12):2933-2936.(in Chinese)
[5]  Xu,Ning,Lin,Weiyao,Zhou,Yu,et.al.A new global-based video enhancement algorithm by fusing features of multiple region-of-interests.2011 IEEE Visual Communications and Image Processing (VCIP).Tainan,Taiwan,2011.1-4.
[6]  朱虹.数字图像处理基础[M].北京:科学出版社,2005.39-46.
[7]  徐健,常志国.一种自适应非线性彩色图像增强技术[J].计算机仿真,2008,25(6):214-216. Xu Jian,Chang Zhiguo.An Adaptive and Nonlinear Technique for Color Image Enhancement[J].Computer Simulation,2008,25(6):214-216.(in Chinese)
[8]  S Srinivasan,N Balram.Adaptive Contrast Enhancement Using Local Region Stretching.The 9th Asian Symposium on Information Display.New Delhi,2006.152-156.
[9]  江巨浪,张佑生,薛峰,等.保持图像亮度的局部直方图均衡算法[J].电子学报,2006,34(5):861-866. Jiang Julang,Zhang Yousheng,Xue Feng,et.al.Local histogram equalization with brightness preservation[J].Acta Electronica Sinica,2006,34(5):861-866.(in Chinese)
[10]  L Tao,V Asari.An integrated neighborhood dependent approach for nonlinear enhancement of color images.International Conference on Information Technology.Coding Computing.ITCC.2004.138-139.
[11]  王守觉,丁兴号,廖英豪,等.一种新的仿生彩色图像增强方法[J].电子学报,2008,36(10):1970-1973. Wang Shoujue,Ding Xinghao,Liao Yinghao,et.al.A novel bio-inspired algorithm for color image enhancement[J].Acta Electronica Sinica,2008,36(10):1970-1973.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133