搜索资源列表
jpg_DCT
- 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.
encoderforjpeg
- 整理的JPEG的编码器，全员源码，非常适合初学者，搞清DCT、Huffman，jpeg 语法等。-finishing JPEG encoder, the full source code, are very suitable for beginners, get DCT, Huffman, jpeg syntax, and so on.
JPEGyasuomatlabdaima
- jepg压缩的matlab代码，采用哈夫曼编码，dct变换-jepg compression Matlab code, using Huffman coding, transform Extra
JepgCodec
- 该程序实现了jpeg编码。开发平台：Window XP， Visual C++ 6.0。 HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-the program achieved a jpeg coding. Platform : Window XP, Visual C 6.0.
colosseum
- Jpeg编解码器的源代码，中间包括DCT变换，量化，Huffman编码等过程-Jpeg codec source code, in the middle including DCT, quantization, Huffman coding process
hu
- 实现基本JPEG的压缩和编码分三个步骤: 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。
JPEGcompression.rar
- 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。 具体源程序由主程序及两个子程序（DCT量化、Huffman编码）组成： ,1. First of all, through the DCT transform to remove data redundancy 2. The use of quantization table of quantization DCT coefficients 3. Of quanti
work.rar
- 常用图像压缩编码码matlab实现。包括：DM编码、变换编码（FFT和DCT）、算术编码、行程编码、Huffman编码、线性预测编码和一个近似的JPEG编码过程。非常适合入门用户实践。,Commonly used image compression coding matlab code to achieve. Including: DM coding, transform coding (FFT and DCT), arithmetic coding, Run-Length Coding, Hu
JPEG.rar
- 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
jpeg
- 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,
Huffman
- MATLAB编写的huffman编解码程序，程序中计算了压缩比。-MATLAB prepared huffman codec procedures, procedures to calculate the compression ratio.
jpeg_decode
- 本解码器类支持普通jpeg文件格式，这也是目前大多数jpeg文件所采用的格式，此格式主要特点是数据精度为8位，采用Huffman编码的普通DCT帧（不支持扩展串行和递进模式及数学编码）。本解码器类的IDCT算法采用三种模式，分别是浮点解码、定点整数解码和定点整数MMX优化解码，您可根据具体情况选择。-jpeg decoder using Huffman encoder、IDCT based on foating decoder、Fixed-point integer decoder and Fi
jpeg_encode+decoderhojoon
- 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 -
rgbquadtreehojoon
- 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 -
jpegc
- 本文档实现了JPEG压缩算法，字组织比较简陋, 大体上分成 3 个部分. 压缩算法简介 1. 色彩模型 2. DCT (离散余弦变换) 3. 重排列 DCT 结果 4. 量化 5. 0 RLE 编码 6. 范式 Huffman 编码 7. DC 的编码 解码过程简述 8. 一个数据单元 Y 的解码 9. JPG 文件(Byte 级)里怎样组织图片信息 10. 关于标记 11. JPG 文件中 Haffman 表的储存
HuffmanandShannon-Fanosourcecoding
- Huffman and Shannon-Fano source coding
itu-t81[1]
- Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding &
jpeg
- jpeg compression , use DCT, Zigzag, Quantization,IDCT, InvZigzag, huffman to do the compression with matlab
media
- huffman 编码来处理图像 DCT变换-huffman coding to DCT transform processing images
Huffman
- Huffman编码的主导思想是根据数据符号发生的概率进行编码。在源数据中出现概率越高的符号，相应的码长越短；出现概率越小的符号，其码长越长，从而达到用尽可能少的码符号表示源数据。Huffman编码方法是接近压缩比上限的一种最佳的编码方法。-The dominant idea of the Huffman coding is based on the probability of occurrence of data symbols for encoding.The higher the prob