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陕西理工学院 物理与电信工程学院,陕西 汉中,723000
收稿日期:2012-03-10,
修回日期:2012-04-09,
纸质出版日期:2012-12-15
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姚军财. 基于人眼对比度敏感视觉特性的彩色图像压缩技术[J]. 液晶与显示, 2012,(6): 800-807
YAO Jun-cai. Color Image Compression Technology Based on Contrast Sensitivity Characteristics of Human Vision System[J]. , 2012,(6): 800-807
姚军财. 基于人眼对比度敏感视觉特性的彩色图像压缩技术[J]. 液晶与显示, 2012,(6): 800-807 DOI: 10.3788/YJYXS20122706.0800.
YAO Jun-cai. Color Image Compression Technology Based on Contrast Sensitivity Characteristics of Human Vision System[J]. , 2012,(6): 800-807 DOI: 10.3788/YJYXS20122706.0800.
结合人眼对比度敏感视觉特性的测量过程和图像离散余弦变换特征
提出了一种基于人眼感知特性的彩色图像压缩技术方案。方案首先将彩色图像转换到CLELAB颜色空间描述
并分别对3个分量进行离散余弦变换处理
再结合人眼对比度敏感函数模型和DCT变换域系数特征对变换域系数进行量化处理
并采用Huffman算法进行编码压缩
最后采用逆过程进行解压并匹配出解压后的彩色图像。通过仿真实验
结果表明:在压缩比为98.355 5:1时
PSNR能达到37 dB以上
人眼无法分辨出解压缩图像与源图像之间的差异;且编码效率能达到0.74以上
冗余度在0.26以下。表明提出的彩色图像的压缩技术方案在保证编码质量和图像质量的前提下能够实现较高的压缩比
是一种可行的、有效的彩色图像压缩技术方案。
According to the measurement process of the human visual contrast sensitivity characteristics and characteristics of Discrete Cosine Transform of the image
a color image compression technology program is proposed based on human visual characteristics. In the program
the color image is converted and described in CLELAB color space at first
and each of the three components of the color image is processed by Discrete Cosine Transform. Secondly
the transform domain coefficients are quantified according to the contrast sensitivity function model of human vision and coefficient's characteristics of Discrete Cosine Transform. The color image is encoded using Huffman algorithm. Lastly compressed images are decompressed using the inverse process
and the color images are matched after decompression. The simulation results show that PSNR can reach 37 dB or more when the compression ratio is 98.355 5:1
and the human eye can not distinguish the differences between the source image and decompressed image
and the coding efficiency can reach more than 0.74
redundancy in 0.26 below
which shows that the color image compression technology solutions proposed can achieve a higher compression ratio under the premise of ensuring the encoding quality and image quality
and is a feasible and effective solution for color image compression technology.
张宁, 吴银花, 金龙旭. 适于航天应用的高速SPIHT图像压缩算法 [J]. 液晶与显示, 2011, 26(6):847-852.[2] 丁绪星, 朱日宏, 李建欣. 一种基于人眼视觉特性的图像质量评价 [J]. 中国图像图形学报, 2004, 9(2):191-192.[3] 苏令华, 李纲, 衣同胜, 等. 一种稳健的高光谱图像压缩方法 [J]. 光学 精密工程, 2008,15(10):1610-1616.[4] 姚军财. 基于人眼对比度敏感视觉特性的图像质量评价方法 [J]. 液晶与显示, 2011, 26(3):390-396.[5] 焦华龙,陈刚. 一种分形彩色图像压缩编码方法 [J]. 软件学报, 2003, 14(4):864-868.[6] 申静. 一种利用人眼视觉特性的数字图像水印技术 [J]. 液晶与显示, 2011, 26(2):234-240.[7] 郑方, 章毓晋. 数字信号与图像处理 [M]. 北京:清华大学出版社, 2006.[8] 范媛媛, 沈湘衡, 桑英军. 基于对比度敏感度的无参考图像清晰度评价 [J]. 光学 精密工程, 2011, 19(10):2486-2495.[9] 许宝卉, 李言. 基于ICC标准的CRT色空间转换方法的研究与比较 [J]. 液晶与显示, 2009, 24(3):438-442.[10] Marcus N. Integration of human colour vision models into high quality image compression [D]. Switzerland: École Polytechnique Fédérale de Lausanne, 2000.[11] Mullen K T. The contrast sensitivity of human color vision to red-green and blue-yellow chromatic gratings [J]. The Journal of Physiology,1985,359:381-400[12] Johnson G M, Fairchild M D. Darwinism of color image difference models [C]// IS and T/SID the 9th Color Imaging Conference, Scottsdale, USA: Society for Imaging Science and Technology, 2001:108-112.[13] Straw A D, Rainsford T, David C, et al. Contrast sensitivity of insect motion detectors to natural images [J]. Journal of Vision, 2008, 8(3):1-9.[14] 李显凌. 基于改进MC算法的CT/MR图像三维重建 [J]. 液晶与显示, 2011, 26(5):683-687.[15] Peli E. Contrast sensitivity function and image discrimination [J]. J. Opt. Soc. Am. A, 2001, 18(2):283-293.
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