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[Compress-Decompress algrithms] DCT

Description: 图片压缩代码，适用于DCT JPEG图片压缩。
Platform: | Size: 1171 | Author: liyigang | Hits:

[Picture Viewer] Jpeg demo

Description: VC＋＋下面的JPEG压缩编码例程，包括DCT，Z字变换等操作-below VC++ JPEG compression routines, including DCT, Z characters transform such an operation
Platform: | Size: 53248 | Author: 余飞 | Hits:

[Picture Viewer] jpeg1

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
Platform: | Size: 23552 | Author: 春春 | Hits:

[Compress-Decompress algrithms] 基于DCT的jpeg图像压缩编码算法的MATLAB实现

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.
Platform: | Size: 40960 | Author: 杨晖 | Hits:

[Picture Viewer] jfdctflt

Description: 一个JPEG文件的压缩实现.为jpeg中的前向DCT变换.是一个有损的压缩-a JPEG compression to achieve. For the jpeg to the DCT. One is the expense of compression
Platform: | Size: 1024 | Author: 范得路 | Hits:

[Picture Viewer] simplejpeg

Description: 一个简单的jpeg的编码器 它采用的离散余弦变换是ANN&SCALE DCT -a simple jpeg the encoder uses the discrete cosine transform DCT is ANNSCALE
Platform: | Size: 11264 | Author: 谢青青 | Hits:

[Picture Viewer] datacomepressed

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
Platform: | Size: 563200 | Author: yangfeng | Hits:

[Compress-Decompress algrithms] jpeg_encoder

Description: 完整的jpeg encoder verilog code,DCT部分採用1991 IEEE transection paper,利用skew circular convolution來實現精簡電路-complete jpeg encoder Verilog code, DCT is partly based on the IEEE 1991 transection paper, using skew circular convolutions to achieve streamlining circuit
Platform: | Size: 25600 | Author: 李寧 | Hits:

[Graph program] JPEGDCTEncodingC++

Description: JPEG DCT量化编码 C++程序,对学习图像压缩编码的过程和具体实现很有帮助。-JPEG DCT quantization coding C program, to learn image coding process and to achieve specific helpful.
Platform: | Size: 11264 | Author: 王成优 | Hits:

[Compress-Decompress algrithms] jpg_DCT

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.
Platform: | Size: 1024 | Author: 孙雨萌 | Hits:

[WEB Code] JPEG-DCT

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
Platform: | Size: 1024 | Author: song | Hits:

[Compress-Decompress algrithms] DCT

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.
Platform: | Size: 1024 | Author: liyigang | Hits:

[Special Effects] jpeg

Description: 论文主要介绍了JPEG的编码和解码过程。该程序的编码部分能把一张BMP格式的图象进行JEPG编码，压缩成以二进制形式保存的文件；通过相应的解码程序又可以把图象解压缩出来。在图象传送过程中，我们经常采用JPEG格式对静态图象进行编码。JPEG基本系统是一种有损编码，无法完全恢复出原图象，信息有一定的丢失，称为有损压缩。尽管我们希望能够无损压缩，但是通常有损压缩的压缩比(即原图象占的字节数与压缩后图象占的字节数之比，压缩比越大，说明压缩效率越高)比无损压缩的高。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。解码时，进行熵解码，反量化，反离散余弦变换（IDCT）。
Platform: | Size: 1959936 | Author: 李明 | Hits:

[Compress-Decompress algrithms] JPEG

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.
Platform: | Size: 2048 | Author: 李雅 | Hits:

[Graph program] JPEG-DCT

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
Platform: | Size: 1024 | Author: 蔡同学 | Hits:

[Embeded-SCM Develop] DCT

Description: ARM汇编，实现DCT算法，图像压缩，JPEG 需要loadmemory，里面附带load文件示例以及样子图片，raw格式-ARM compilation and realizing DCT algorithm, image compression, JPEG need loadmemory, incidental load inside sample documents, as well as look like picture, raw format
Platform: | Size: 10240 | Author: 林锋 | Hits:

[Compress-Decompress algrithms] JPEG

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
Platform: | Size: 168960 | Author: 宇翔 | Hits:

[Picture Viewer] temporal_compr

Description: The following files give basic informations regarding DCT,JPEG,VIDEO and temporal compression schemes
Platform: | Size: 2284544 | Author: Navkul | Hits:

[VHDL-FPGA-Verilog] JPEG

Description: 本文首先介绍了静态图像压缩（JPEG）编码算法的基本原理、压缩的实现过程及其重要过程的离散余弦变换（DCT）算法的实现原理及软件实现的例程，其次着重介绍了压缩过程中的DCT、量化和编码三个重要步骤的实现原理。-This paper describes the static image compression (JPEG) coding algorithm is the basic principle of compression process of the implementation process and its important discrete cosine transform (DCT) Algorithm theory and software implementation of the routines, followed by highlights of the compression process DCT, quantization and encoding steps in the realization of three important principles.
Platform: | Size: 41984 | Author: xuai | Hits:

[Special Effects] DCT-JPEG-HUFFMAN-WAVELET

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
Platform: | Size: 101376 | Author: 江为 | Hits:
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