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数字图像处理实验
根据原图像的直方图,发现背景和目标的分割值大约在130左右,并将灰度图像转为二值图像,分割效果比较理想。
图像处理实验(六)图像压缩与编码
实验目的: 学习JPEG压缩编码
实验内容:
一.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。-digital image processing experiments based on
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基于C++语言的静态图象压缩编码,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。-based on the C language static image compression, JPEG DCT quantization coding C procedures, learning right image coding process and to achieve specific helpful.
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基于DCT的图像压缩算法的研究图像压缩的必要性-DCT-based image compression algorithm of the need for image compression
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总结分析现有的题目相关图像压缩算法;对现有的主要图像压缩关键算法进行仿真实现,给出各种算法的优缺点和适用范围;选定本毕业设计采用方案,编出基于DCT变换的图像压缩仿真设计程序-analysis of topics related to the existing image compression algorithm; of the existing main key image compression algorithm simulation realized, given the advant
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用于电视编码,解码,比较各种图像压缩算法的优缺点,给出基于DCT变换的图像压缩软件程序-for video encoding, decoding, compare various image compression algorithm advantages and disadvantages DCT is based on the image compression software
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图像压缩用的DCT变换,相信对你一定很有用的。-image compression with the DCT, I believe you will very useful.
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是进行JPEG图形压缩算法的代码,对图形进行DCT变换-is JPEG image compression algorithm code, the graphics DCT
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Sobel算子:是一种空域微分算子,可以通过它锐化图象。
将图象分块(8*8),作DCT变换,并作IDCT:DCT是一种可分离图象变换,用来图象压缩编码。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8 * 8), for the DCT and IDCT for : DCT is a separable Image Transfor
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数字图像压缩算法,基于MATLAB的数字图像压缩算法,DCT格式
-digital image compression algorithm based on MATLAB digital image compression algorithm, DCT format
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基于DCT变换的图像压缩的基本原理及其实现步骤。采用DCT变换压缩的依据。图像压缩过程的最后步骤是编码量化了的图像。在此,我采用的是Huffman编码方法。并使用MATLAB7.0实现DCT图像压缩的仿真。-DCT based on the image compression
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使用Matlab编程实现发送端信源编码(图像压缩)和接收端信源解码(图像重建),其中的编解码算法可采用基于DCT变换的JPEG图像压缩标准;测试图像加噪,然后对去噪后的图像进行压缩与重建,分析压缩性能;研究基于下采样和内插的图像压缩算法;可将8bit/pixel灰度图像扩展至24bit/pixel彩色图像,或者采用无损压缩算法对图像压缩。-Sender using the Matlab programming source coding (image compression) and the r
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通过dct变换,以及使用了熵编码的huffman编码形式,对lena图像进行压缩。改变压缩率来看压缩结果-By dct transform, and the use of entropy coding huffman encoding on the lena image compression. Change the compression ratio compression results view
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DCT对距正DCT压缩,然后解码,主要用于图像的压缩和解压-DCT matrix DCT compression, and then decode,Mainly used for image compression and decompression
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第十章 MATLAB 图像正交变换
10.1 正交变换通用算子
10.2 傅立叶变换
10.2.1 傅立叶变换的原理
10.2.2 傅立叶性质
10.2.3 二维离散傅立叶变换( 2DDFT )
10.2.4 快速傅立叶变换( FFT )
10.2.5 傅立叶变换的研究与应用
10.3 离散余弦变换
10.3.1 DCT 变换矩阵
10.3.2 dct2 函数和 dctmtx 函数
10.4 Walsh- Hadamard 变换
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图像压缩BTCODE PYRAMID DCT IMCOMPR
的这个文件里都是图像压宿的,它包含一下几种方法:
BTCODE
PYRAMID
DCT
IMCOMPR
-Image compression BTCODE PYRAMID DCT IMCOMPR this document are the image compression places, and it contains several methods like: BTCODEPYRAM
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基于DCT变换的JPEG图像压缩的matlab代码-The matlab code of JPEG image compression based on DCT transform
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Transform Discrete of Cosine to compress audio y and image
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a new hybrid transform coding methodology for
lossy image compression that integrates discrete wavelet
transform, discrete cosine Transform and singular value
decomposition methods is proposed. The proposed system has
enhancements in both the com
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基于离散余弦变换实现图像压缩。程序可以直接运行。(Image compression based on discrete cosine transform.)
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DCT变换实现图像压缩及嵌入水印等,内含测试文件及DCT算法讲解(Image compression and embedding watermark by DCT transform)
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