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Description: 关于 JEPG的DCT代码，比较简单，但还是比较好的，大家学习-DCT on the JPEG code, relatively simple, but is still relatively good, we learn
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Size: 23552 |
Author: 春春 |
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Description: 这是一个基于DCT的jpeg图像压缩编码算法的MATLAB实现的程序,对做jpeg压缩的朋友会很有帮助-this is matlab jpeg compression based on dct,it is helpful for who embark on jpeg compression.
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Size: 40960 |
Author: 杨晖 |
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Description: 这是使用小波变换,jpeg以及DCT变换对图像进行的压缩
-This is the use of wavelet transform, and the DCT jpeg images of the compression
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Size: 563200 |
Author: yangfeng |
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Description: 介绍了JPEG图像压缩算法,并在MATLAB 数学分析工具环境下从实验角度出发,
较为直观地探讨了DCT 在JPEG图像压缩中的应用。仿真实验表明,用MATLAB 来实现离散余弦
变换的图像压缩,具有方法简单、速度快、误差小的优点,大大提高了图像压缩的效率和精度。
李秀敏1 , 万里青1 , 周拥军2
(1. 河南科技大学电子信息工程学院,河南洛阳 471003 2. 中航一集团洛阳电光设备研究所,河南洛阳 471009)-introduced the JPEG image compression algorithm, MATLAB and mathematical analysis tool environment from experimental perspective, more directly on the DCT in JPEG image compression applications. Simulation results show that the use MATLAB to achieve discrete cosine transform image compression method is simple, fast, the advantages of a small error, which has greatly enhanced the efficiency of image compression and accuracy. LI Xiu-1, Green 1 Wanli, Zhou Yongjun 2 (1. Henan University of Science and Technology of Electronics and Information Engineering College, Luoyang, Henan 471003 2. A350 Luoyang Electro-Optic Equipment Institute, Luoyang, Henan 471009)
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Size: 108544 |
Author: adnsid |
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Description: 实现基本JPEG的压缩和编码
％ 1． 首先通过DCT变换去除数据冗余；
％ 2． 使用量化表对DCT系数进行量化；
％ 3． 对量化后的系数进行Huffman编码。
-achieve basic JPEG compression and coding% 1. First through DCT remove data redundancy; % 2. Using quantitative table right DCT coefficient quantization; 3. Right quantized coefficients of Huffman coding.
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Size: 1024 |
Author: 孙雨萌 |
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Description: 关于利用离散余弦变换DCT的jpeg压缩的matlab源程序，简单实用，也有注释，很好读。-on the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time.
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Size: 23552 |
Author: 张华 |
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Description: JPEG压缩核心变换DCT实现源码，用matlab7.0实现-JPEG compression core transform DCT achieve source used to achieve matlab7.0
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Size: 1024 |
Author: song |
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Description: 基本jpeg压缩源码，包括dct,量化，zigzag和huffman编码，适于数字图像处理开发人员。-Basic jpeg compression source, including dct, quantization, zigzag and huffman encoding, suitable for digital image processing developer.
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Size: 110592 |
Author: 赵瑞 |
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Description: oJPEG2000中DWT的MATLAB实现n the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time-DWT of MATLAB in oJPEG2000 realize n the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time
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Size: 357376 |
Author: 小户 |
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Description: 图片压缩代码，适用于DCT JPEG图片压缩。-Image compression code, applicable to DCT JPEG image compression.
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Size: 1024 |
Author: liyigang |
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Description: 这是一个静态JPEG图像编码及解码的程序。程序同时实现了经典的和Chen陈氏数据流图的DCT离散余弦变换。预先定义JPEG图像质量级别矩阵和zigzag排序-This is a static JPEG image coding and decoding procedures. Procedures at the same time realize a classic and Chen Chen
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Size: 95232 |
Author: 林明 |
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Description: 实现JPEG的压缩和编码
（1）首先通过DCT变换去除数据冗余；
（2）使用量化表对DCT系数进行量化；
（3）对量化后的系数进行Huffman编码。
-The realization of JPEG compression and coding (1) First of all, through the DCT transform to remove data redundancy (2) the use of quantization table of quantization DCT coefficients (3) of the coefficients after quantization Huffman coding.
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Size: 2048 |
Author: 李雅 |
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Description: JPEG中DCT 变换在 matlab中的实现 相当简便-JPEG in the DCT transform in matlab in the realization of a very simple
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Size: 1024 |
Author: 蔡同学 |
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Description: 一个图像处理程序，使用DCT快速算法，只需把源码改成m文件即可。-An image processing procedures, the use of DCT fast algorithm, just the source file can be replaced by m.
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Size: 2048 |
Author: volcano |
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Description: 图像JPEG压缩算法，由8*8DCT变换，调用量化表进行量化，最后由Huffman编码完成算法-JPEG image compression algorithm, the 8* 8DCT transform, quantization table calls to quantify, and finally completed by the Huffman coding algorithm
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Size: 168960 |
Author: 宇翔 |
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Description: 对JPEG的压缩标准进行了仿真，主要过程DCT压缩，根据JPEG的量化矩阵对DCT结果进行量化，对量化结果进行Huffman编码。同时也实现了解压缩过程，即执行上述过程的逆过程。-JPEG compression standard of the simulation, the main process of DCT compression, according to the JPEG quantization matrix to quantify the results of the DCT, to quantify the results of Huffman coding. At the same time compression process to achieve understanding, that is, the inverse process of the implementation of the process.
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Size: 5120 |
Author: Justin |
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Description: This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
-This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
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Size: 128000 |
Author: Ho Joon Lee |
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Description: 本上传是在matlab环境下实现图像的基于DCT的JPEG压缩，上传内容包括主程序、子函数和实验原理pdf。可供朋友学习与参考。-This upload is in the matlab environment to achieve the image DCT-based JPEG compression, upload content, including the main program, subroutine and experimental principles of pdf. For friends to study and reference.
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Size: 136192 |
Author: 马妍 |
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Description: 含有DCT JPEG HUFFMAN WAVELET图像压缩解压缩matlab的代码示例-With DCT JPEG HUFFMAN WAVELET image compression and decompression matlab code example
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Size: 101376 |
Author: 江为 |
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Description: a program that encod and decode an image with jpeg stadard, using the dct transform
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Size: 54272 |
Author: bilabila
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