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5下载：
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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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.
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About transforms DCT using the separate cosine jpeg the compression the matlab source program, simple is practical, also has the annotation, very good reads. ,matlab,Wavelet -About DCT transforms using the separate co the sine jpeg compression the p
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the attached utility is a work I ve submitted to the university
It shows what a jpeg compression is all about.
the function implements the DCT transform, using a matrix operator.
note that matlab has a function for the DCT and iDCT transform
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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
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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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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,
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JPEG压缩算法的核心是“视觉保真”原理，利用人类视觉系统特征进行处理，以达到最大图像数据压缩效果，实际上就是去除那些人眼不易觉察的信息。图像的空间频率对人的视觉至关重要，采用离散余弦变换可将图像分解成一组波，每个波有一个不同的空间频率，这样可以去除人类眼睛觉察不到的信息，而且还可使系统只保留重要的信息。-JPEG compression algorithm is the core of " visual fidelity" principle, the use of the
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本程序实现了一个基本的灰度图像的JPEG压缩过程。其中的函数可实现DCT变换。-It shows what a jpeg compression is all about.
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该程序利用离散余弦变换（DCT）对JPEG图像进行压缩与解压缩-The program using the discrete cosine transform (DCT) for JPEG image compression and decompression
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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
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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
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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 &
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jpeg compression , use DCT, Zigzag, Quantization,IDCT, InvZigzag, huffman to do the compression with matlab
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裡面有包含圖片跟jpeg壓縮的主要程序DCT的演算法,會秀出作dct轉換的前後圖片-Contains a picture inside the main program with the jpeg compression algorithm DCT will be showed off pictures before and after conversion for dct
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JPEG的压缩编码及其matlab实现，包含了DCT变换，量化，AChuffman编码，DChuffman编码。-Of JPEG compression matlab to achieve, including the DCT, quantization, AChuffman coding, DChuffman coding.
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JPEG compression in image processing using DCT
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利用JPEG压缩方法对Lena图像进行压缩，其中包括DCT变换，及变换后取整，复原图像。-JPEG COMPRESSION VIA MATLAB
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It shows what a jpeg compression is all about.
the function implements the DCT transform, using a matrix operator.
note that matlab has a function for the DCT and iDCT transforms
that might be more efficient.
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实现bmp图像的压缩编码解压，包括哈弗曼编码解码 dct变换 量化(Realize the BMP image compression coding decompression)
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