Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Computer Applications》 2002-11
Add to Favorite Get Latest Update

A DISTORTION-ADJUSTABLE IMAGE COMPRESSION ALGORITHM BASED ON SPATIAL TRANSFORM

YAN Bin 1,2 , CHEN Chuan-bo 2 (1. School of Mathematics and Computer Science, Jianghan University, Wuhan Hubei 430019, China; 2. College of Computer Science, Huazhong University of Science and Technology, Wuhan Hubei 430074, China)  
A quadtree-based Maximal Quadratic Deviation Adjustable (MQDA) image compression algorithm is presented, which has less computing quantity and occupies lower memory space than other quadtree-based approaches. When sub images are merged to their higher-level bigger ones, a threshold of quadratic deviation and a level difference is used to control if leaf nodes and their corresponding middle node on the quadtree would be produced or not. By adjusting the threshold and the difference from 0 to 40, the algorithm realizes functions from lossless compression to loss compression. After compression, with same PSNR, the image processed by MQDA algorithm has lower bpp than that by JPEG compression. And with same compression ratio, the image vision quality by MQDA algorithm is better than that by JPEG compression. The algorithm has acceptable time complexity O(N3) and space complexity O(N), and it could be used to compress and transmit any size of images.
【CateGory Index】: TP391.41
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 5 Hits
1 DENG Jiang-hua1,XIONG Xiao-hong2(1.Management Department of State-owned Assets,Huanggang Normal University,Huangzhou 438000,Hubei,China;2.Edong Vocational & Technical College,Huangzhou 438000,Hubei,China);Algorithm for compression of binary image based on isosceles right triangle[J];黄冈师范学院学报;2007-06
2 NIU Ji-ping,YU Zhi-chao(Dept.of Computer,Huanggang Normal University,Huangzhou 438000,Hubei,China);Quadrilateral zone producing algorithm for binary image[J];黄冈师范学院学报;2005-06
3 YAN Bin(Department of Mathematics and Computer Science,Jianghan University,Wuhan 430056,China);A Watermarking Algorithm Based on Spatial Even Blocks[J];计算机工程与科学;2005-11
4 TONG Yinghong,CAO Boyan(School of Computer Science and Engineering,Xidian University,Xian Shaanxi 710071,China);Implementation of the Unpacking of DICOM File with Lossless Compression Method[J];计算机应用;2003-10
5 ;A Quadtree-Based Digital Watermarking Algorithm[J];电子工程师;2003-02
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 HU ZHIHUA CHEN CHUANBO;Methods Improving for Fractal Image Compression Based on Tolerance Rough Sets[J];微计算机信息;2007-06
2 HU Zhihua~1, QIN Zhongping~2 1. Department of Computer, Huanggang Normal College , Huangzhou 438000, Hubei, China; 2. College of Software, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;An Effective Digital Watermarking Algorithm for Binary Text Image[J];Wuhan University Journal of Natural Sciences;2006-06
3 NIU Ji-ping,YU Zhi-chao(Dept.of Computer,Huanggang Normal University,Huangzhou 438000,Hubei,China);Quadrilateral zone producing algorithm for binary image[J];黄冈师范学院学报;2005-06
4 ZHANG Xue(Department of Applied Mathematics and Physics,Xi′an University of Post and Telecommunications,Xi′an 710061);Fuzzy Patten Recognition of Irregular Triangle and Square[J];机械科学与技术;2005-10
5 Lu Shenglian Lin Shimin(College of Math.&Computer Science,Guangxi Normal University,Guilin541004);Research of Distance-based Outliers Detection[J];计算机工程与应用;2004-33
6 YAN Bin 1,2 , CHEN Chuan-bo 2 (1. School of Mathematics and Computer Science, Jianghan University, Wuhan Hubei 430019, China; 2. College of Computer Science, Huazhong University of Science and Technology, Wuhan Hubei 430074, China);A DISTORTION-ADJUSTABLE IMAGE COMPRESSION ALGORITHM BASED ON SPATIAL TRANSFORM[J];计算机应用;2002-11
7 Yan Bin 1,2 Chen Chuanbo 21 (Dept.of Mathematics and Computer,Jianghan University,Wuhan430019) 2 (School of Computer Science,Huazhong University of Science and Technology,Wuhan430074);A Quadtree_Based Spatial Layer Producing Algorithm for Binary Image[J];计算机工程与应用;2002-09
8 ;Study on Close-lossless Compressed Technology based on the Frame of JPEG LS[J];电脑开发与应用;2002-04
9 XIA Guang-Sheng CHEN Ming-Qi YANG Yi-Xian HU Zheng-Ming (Center of Information Security, Beijing University of Posts and Telecommunications, Beijing 100876);Watermark Algorithm Based on Modulo[J];计算机学报;2000-11
10 Zhou Siqing Yu Yinglin (Department of Electronic and Communication Engineering,South China University of Technology, Guangzhou 510641) (Department of Computer Science,Guangdong Normal Polytechnic,Guangzhou 510633);Research on A Complementary Image Watermarking Algorithm[J];计算机工程与应用;2000-11
【Secondary References】
Chinese Journal Full-text Database 4 Hits
1 Xia Shenpin(Information Section,Shanghai Jiao Tong University Affiliated Children's Hospital,Shanghai200040,China);Dicom Image Display Based on the the HTML5 Standards[J];微型电脑应用;2012-10
2 HUANG Xue-mei,WANG Jin-chuan,HAO Yuan(College of Mechanical Engineering,Shandong University of Technology,Zibo 255049,China);Research on rapid extraction technology of DICOM medical image file[J];机械设计与制造;2012-05
3 RONG Bao-jian1,LIU Yang2,YANG Li-fang1,LIANG Ying1,LI Yue1(1.Computing Center of Guangxi,Nanning,Guangxi,530022,China;2.Guangxi Science and Technology Information Network,Nanning,Guangxi,530012,China);Image Compression of Fractal Code Based on Isosceles Right Triangle[J];广西科学院学报;2008-04
4 DENG Jiang-hua1,XIONG Xiao-hong2(1.Management Department of State-owned Assets,Huanggang Normal University,Huangzhou 438000,Hubei,China;2.Edong Vocational & Technical College,Huangzhou 438000,Hubei,China);Algorithm for compression of binary image based on isosceles right triangle[J];黄冈师范学院学报;2007-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved