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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
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基于wavelet和bandelet的spiht图像压缩！,And wavelet-based image compression spiht the bandelet!
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基于Matlab的JPEG2000图像压缩实现，离散小波变换DWT，程序中图片的位置修改下可以自己运行程序看到效果-Matlab-based implementation of the JPEG2000 image compression, discrete wavelet transform DWT, where the image changes the program may be run its own program to see results
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三维DCT变换是在空间信息上增加了一维的时间维度，对视频系列直接进行压缩-Three-dimensional DCT transform information in the space are added to one-dimensional time dimensions of the video series for direct compression
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讲解了 MATLAB语言环境下
图像压缩和图像融合方面的基本方法和基于小波变换的图像分解与重构。-Explained the MATLAB language environment, image compression and image integration of the basic methods and wavelet-based image decomposition and reconstruction.
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双树复小波变换具有平移不变性、方向选择性等特点，适合进行图像压缩，优于传统离散小波变换方法。-The DT-CWT is suitable to image compression processing because of its shift invariance and directional selectivity. It is preferable to traditional Discrete Wavelet Transform(DWT).
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dwt image compression
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基于DWT的图像压缩，上数字图像处理可的大作业-DWT Compression
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结合svd与dwt的程序，优点有很多，例如抗压缩攻击，抗剪切攻击，-Dwt with svd and procedures, there are many advantages, such as resistance to compression attacks, shear attacks, etc.
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小波变化实现图像的压缩，图像复原，图像的编码等，用matlab实现的-Wavelet transform for image compression, image restoration, image coding, matlab implementation
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matlab环境的小波压缩算法，给予dwt的心电图压缩，滤去了高频分量，具有较高的压缩比率-matlab environment wavelet compression algorithm, giving dwt ECG compression, filter the high frequency components with high compression ratio
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基于DWT的彩色图像数字水印的matlab实现水印的嵌入与提取，能抵抗噪声，剪切，压缩攻击-Based on DWT color image digital watermark matlab watermarking embedding and extracting, can resist noise, shear and compression attack
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盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲
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基于Matlab的压缩感知DCT、DWT、DFT正交基及过完备字典稀疏分解信号及重构-Matlab-based compression perception DCT, DWT, DFT orthogonal basis and complete dictionary signal sparse decomposition and reconstruction
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THIS is a matlab code of sppech compression
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Discrete Wavelet Transform using Daubechies Wavelet family for Stationery and non-stationery signal and test with ECG signal for compression as well. The Matlab code are very simple and detailed one to understand easily. Can change code and produce o
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matlab code for dwt image compression. very helpful
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实验2绿叶变色，实验3图像数字化显示，实验4图像类型转换，实验5对比度增强，实验6直方图均衡化和规定化，实验7噪声添加和空域滤波，实验8边缘增强和边缘检测，实验9彩色图像增强，fft，dct，dwt变化及压缩，滤波器，实验20运动退化和维纳波复原，实验21图像的几何畸形校正等实验的代码和报告-Experiment 2 leaves change color, 3 digital image display, the image type conversion, 4 5 contrast enha
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matlab code for image compression using DCT and DWT
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该课题为基于MATLAB的数字水印系统。包括离散余弦DCT和小波变换DWT两种算法的对比，有一个GUI界面，包括嵌入，加噪，旋转，剪切，压缩等多种攻击，提取候，具有评价指标PSNR,NC等来评价算法的鲁棒性(This project is a digital watermarking system based on MATLAB. It includes the comparison of DCT and DWT. It has a GUI interface, including embedd
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