Description: 利用97小波变换进行图像压缩，用matlab仿真，实验证明它具有较高的压缩比-using wavelet transform image compression using Matlab simulation experiment to prove that it has a higher compression ratio Platform: |
Size: 48128 |
Author:李江涛 |
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Description: 利用小波分解与重构,实现图像压缩,可灵活选用其他小波,简单易懂,特别适合小波初学者.-using wavelet decomposition and reconstruction, image compression, the flexibility to choose other wavelet is simple to understand and Wavelet particularly suitable for beginners. Platform: |
Size: 1024 |
Author:whq |
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Description: 利用小波分解与重构,实现图像去噪和压缩,可灵活选用其他小波,简单易懂,特别适合小波初学者.-using wavelet decomposition and reconstruction, Image Denoising and Compression, the flexibility to choose other wavelet is simple to understand and Wavelet particularly suitable for beginners. Platform: |
Size: 1024 |
Author:whq |
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Description: Matlab环境下利用Daubechies小波族中的db10小波对散斑退化图像进行了压缩数值仿真研究。研究表明：阈值以及分解层次的选取影响着图像压缩的质量。-Matlab environment using Daubechies wavelet tribal db10 wavelet the withdrawal of speckle image compression for the numerical simulation. Research shows : the threshold level of decomposition is influenced by the quality of image compression. Platform: |
Size: 4096 |
Author:安 |
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Description: 提出了一种基于小波域的图像数字水印算法·该算法将相互正交的两种水印(鲁棒水印和参考
水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添加了水印的图像·用提取出
的参考水印来估计图像所受到的攻击,由于提取出的鲁棒水印所受的攻击与参考水印受到的攻击一样,因此
可以估计出原始的鲁棒水印·通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理等试
验,均能正确检测出水印,表明该算法具有很好的感知效果和鲁棒性
-A wavelet-based image digital watermarking algorithm that the algorithm will be mutually orthogonal two watermarks (watermark robust watermarking and reference) at the same time added to the carrier after image after DWT wavelet coefficients, and then using wavelet transform has been Add a watermark image to use to extract a reference to estimate the watermark image by the attacks, as a result of the robust watermark extracted suffered attacks and the reference watermark by the same attack, it can be estimated through the original Robust Watermarking of the embedded watermark image by adding noise, filtering, compression and cutting, such as a large number of image processing such as testing, can correctly detect the watermark, show that the algorithm has good performance and robustness of perception Platform: |
Size: 190464 |
Author:李倩 |
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Description: 用MatLab实现图像压缩。以真彩图像的处理为例，对由它转换来的彩色索引矩阵进行二进小波多层分解，对低频近似的系数矩阵作相应的截取处理，以及优化索引图像的彩色图。-Realize image compression using MatLab. To deal with true color images for example, by its conversion to the color index matrix dyadic wavelet decomposition of multi-storey, low-frequency approximation of the coefficient matrix for the corresponding interception treatment, as well as the optimization of image color map index. Platform: |
Size: 446464 |
Author:郝鹏翼 |
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Description: 利用小波提升算法和huffman编码进行图像的无算压缩，压缩比约50％，vc6编译-Using Wavelet Lifting Scheme and huffman coding image without operator compression, the compression ratio of about 50, vc6 compiler Platform: |
Size: 54272 |
Author:vic |
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Description: 使用小波变换进行图象压缩,实现图象的压缩和解压.不错的程序,希望大家可以享用,并多多指导. -Using wavelet transform image compression to achieve image compression and decompression. Good program, I hope everyone can enjoy, and a lot of guidance. Platform: |
Size: 34816 |
Author:liulili |
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Description: 利用小波变换对语音信号进行压缩，小波函数db5,分解级数5-Using Wavelet Transform of the voice signal compression, wavelet function db5, decomposition series 5 Platform: |
Size: 1024 |
Author:吴强 |
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Description: dctcom.m文件利用DCT变换完成对输入图像进行压缩；imagecbe.m完成对输入的两幅RGB图像用小波分析的方法进行图像融合 imagecom.m完成对输入的RGB图像用小波分析的方法进行自动降噪，得到高频系数阈值，降噪效果百分比和结果 wavelet1D.m完成对输入的一维信号进行多尺度离散小波分解 wavelet2D完成对输入的二维信号进行多尺度离散小波分解；zigzag.m完成对输入的8*8矩阵按照zigzag排列抽取数据.-document the use of DCT transform dctcom.m completion of the input image compression imagecbe.m completion of the two RGB input image with wavelet analysis method of image fusion imagecom.m completion of the input RGB image using wavelet analysis method automatically drop noise, the threshold of high-frequency coefficient, noise reduction effect and the results of the percentage of wavelet1D.m completion of the input signals of one-dimensional discrete wavelet multi-scale decomposition wavelet2D completion of the input signals of two-dimensional discrete wavelet multi-scale decomposition zigzag.m completed the input of 8* 8 matrix of data collected in accordance with the zigzag order. Platform: |
Size: 3072 |
Author:zhouhao |
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Description: 使用小波变换和神经网络的混合图像压缩，希望对大家有所帮助-Using wavelet transform and neural network hybrid image compression, I hope all of you to help Platform: |
Size: 1024 |
Author:Mr. Yang |
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Description: A paper that I presented on Supervisory Control and Data Acquisition (SCADA) won the second prize at the symposium conducted by the Electrical and Electronics Engineering department of the SRM University. Other topics on which I presented papers were Performance enhancement of wireless sensor networks using directional antennas, Smart card application and wireless communication. Also my research idea titled “Wavelet Based Image Compression Using SPIHT Algorithm “secured third prize in a technical festival. Platform: |
Size: 522240 |
Author:ajeeth |
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Description: 用小波变换和LGB编码的方法压缩黑白图片。对图像进行小波变换后，仅对细节系数进行压缩，而且不同小波变换层的细节系数的压缩程度不一样。-Using wavelet transform and coding method LGB compress black and white picture. After the wavelet transform of the image, only the details of the coefficient is compressed, and different layers of the details of the wavelet transform coefficients hold different compression levels. Platform: |
Size: 789504 |
Author:Yin |
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Description: Program to simulate the image compression and decompression using wavelet transformation. this program uses the matlab m codes for coding. Platform: |
Size: 1024 |
Author:cpudnt |
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Description: the source code used for image compression using wavelet transform. to use this codes u have to first convert RGB image to grayscale and also its colourmap Platform: |
Size: 1024 |
Author:santosh |
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Search - compression using wavelet