Search - dct matlab

[SourceCode] dct

Description: 离散余弦变换源代码(VC)- Separate cosine transformation source code (VC)
Platform: | Size: 1024 | Author: 张宏 | Hits:

[matlab] watermark的DCT代码1

Description: 一个基于DCT域的数字水印代码，里面有详细的注释说明。-This is a digital watermarking sourcecode based on DCT.Attached with detailed comments and explanation.
Platform: | Size: 491520 | Author: 符号 | Hits:

[Wavelet] 图像离散余弦变换

Description: 此程序可实现广为应用的离散余弦变换（DCT).-the program can actualize image discrete cosine transform which is widely used.
Platform: | Size: 4096 | Author: 李强 | Hits:

Description: matlab dct－lms自适应算法仿真例子，该例子做了dct－lms和lms的比较。-Matlab Extra-LMS adaptive algorithm simulation example, the example done Extra-LMS and LMS comparison.
Platform: | Size: 5120 | Author: | Hits:

[2D Graphic] FasteffectiveDCT

Description: DCT变换是数字图像处理中重要的变换，很多重要的图像算法、图像应用都是基于DCT变换的，如JPEG图像编码方式。对于大尺寸的二维数值矩阵，倘若采用普通的DCT变换来进行，其所花费的时间将是让人难以忍受甚至无法达到实用。而要克服这一难点，DCT变换的快速算法无非是非常吸引人的-DCT digital image processing is an important transformation, many important images algorithm, imaging applications are based on the DCT, such as JPEG image encoding. For large-size two-dimensional numerical matrix, if only the ordinary for DCT, they spent the time people will be unable to reach intolerable even practical. To overcome this difficulty, DCT fast algorithm is nothing more than a very attractive
Platform: | Size: 10240 | Author: javenliu | Hits:

[Wavelet] tuxiangshuyan

Description: 基于dct系数的数字水印算法实现，在matlab环境中实现-coefficient based on digital watermarking algorithm in Matlab environment to achieve
Platform: | Size: 153600 | Author: 伊海 | Hits:

[matlab] dctblock

Description: 数字水印的嵌入和检测，dct，作者Mao Li Purpose:an algorithm to achieve the embeding watermarking to a image by dct bloking and hvs,then detect the watermarking by comparability. -digital watermark embedding and detection, Copy, the writer Mao Li Purpose : an algorithm to achieve the embeding watermark ing to a image by Extra bloking and hvs. then detect the watermarking by comparability .
Platform: | Size: 1024 | Author: awen | Hits:

[GDI-Bitmap] compression_compression

Description: 图像压缩算法，matlab环境编写，包括：btcode，conv2fft，convfft，dctcompr，imcompr，pyramid，都是很经典的哦：）-image compression algorithm, Matlab environment preparation, including : btcode, conv2fft. convfft, dctcompr, imcompr, pyramid, very classic oh :)
Platform: | Size: 9216 | Author: chaos545 | Hits:

[VHDL-FPGA-Verilog] matlab-fft

Description: FFT的MATLAB的实现方式，自己试过，大家可以参考一下。-FFT MATLAB way to achieve their tried, we could take a look.
Platform: | Size: 1024 | Author: 郭子荣 | Hits:

[Special Effects] DCTmatlab

Description: matlab关于DCT的图像处理程序供大家交流-Matlab on DCT image processing procedures for the exchange of
Platform: | Size: 2048 | Author: 流风回雪 | Hits:

[matlab] DCT_watermark

Description: 全套的DCT域数字水印源代码（本人毕业设计成果）内容包括：水印嵌入，水印检测，攻击实验以测试鲁棒性，重要参数计算。希望对做数字水印的XDJM有所帮助。-complete DCT digital watermarking source code (I graduated design results) include : watermark embedding, Watermark detection, attack experiment to test the robustness, an important parameter calculation. Want to do digital watermarking Wilson help.
Platform: | Size: 520192 | Author: 魏凯 | Hits:

[Other] tuxiang314

Description: 　介绍了JPEG图像压缩算法,并在MATLAB 数学分析工具环境下从实验角度出发, 较为直观地探讨了DCT 在JPEG图像压缩中的应用。仿真实验表明,用MATLAB 来实现离散余弦变换的图像压缩,具有方法简单、速度快、误差小的优点,大大提高了图像压缩的效率和精度。李秀敏1 , 　万里青1 , 　周拥军2 (1. 河南科技大学电子信息工程学院,河南洛阳　471003 2. 中航一集团洛阳电光设备研究所,河南洛阳　471009)-introduced the JPEG image compression algorithm, MATLAB and mathematical analysis tool environment from experimental perspective, more directly on the DCT in JPEG image compression applications. Simulation results show that the use MATLAB to achieve discrete cosine transform image compression method is simple, fast, the advantages of a small error, which has greatly enhanced the efficiency of image compression and accuracy. LI Xiu-1, Green 1 Wanli, Zhou Yongjun 2 (1. Henan University of Science and Technology of Electronics and Information Engineering College, Luoyang, Henan 471003 2. A350 Luoyang Electro-Optic Equipment Institute, Luoyang, Henan 471009)
Platform: | Size: 108544 | Author: adnsid | Hits:

[matlab] compression111

Description: 用MATLAB实现的各种图像压缩方法，有BTCODE，PYRAMID，DCTCOMPR，IMCOMPR等。-MATLAB various image compression method, BTCODE, PYRAMID. DCTCOMPR, IMCOMPR so.
Platform: | Size: 10240 | Author: 江鸟 | Hits:

[matlab] mydct_good

Description: 该压缩包实现二维的DCT变换和逆DCT变换，可以对图像做DCT变换和逆DCT变换，实现非常简洁，速度很快。-the compressed 2D DCT and the inverse DCT. Images can be done DCT and inverse DCT achieve a very simple, very fast.
Platform: | Size: 1738752 | Author: 李文 | Hits:

[matlab] dctanddwt

Description: 对比dct和dwt在图像数字水印应用中的特点，分析其特性。-contrast Extra dwt and the application of digital watermarking images of features, analysis of their identity.
Platform: | Size: 1024 | Author: 袭乐宣 | Hits:

[Wavelet] jpegtool_matlab

Description: 关于利用离散余弦变换DCT的jpeg压缩的matlab源程序，简单实用，也有注释，很好读。-on the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time.
Platform: | Size: 23552 | Author: 张华 | Hits:

[GDI-Bitmap] dct_code

Description: DCT编码mtalab程序，其中用到matlab的图像编码模块以及一些常用的算法程序-DCT coding procedures which used Matlab image coding module, and some commonly used algorithm!
Platform: | Size: 1024 | Author: favinfeng | Hits:

[VHDL-FPGA-Verilog] mdct.tar

Description: 这是06年4月刚刚完成的程序，从opencore.org下载而来。用vhdl语言描写，以及matlab仿真，testbench，以及在xinlinx上的综合。 The MDCT core is two dimensional discrete cosine transform implementation designed for use in compression systems like JPEG. Architecture is based on parallel distributed arithmetic with butterfly computation. -This is April 06 had just completed the process, from opencore.org downloaded from. Vhdl description language used, and Matlab simulation, testbench, and the Comprehensive xinlinx. The MDCT core is two dimensional discrete cosin e transform implementation designed for use in JPEG compression systems like. Architecture i 's based on parallel distributed arithmetic wit h butterfly computation.
Platform: | Size: 1767424 | Author: 陈朋 | Hits:

[Compress-Decompress algrithms] JPEGyasuomatlabdaima

Description: jepg压缩的matlab代码，采用哈夫曼编码，dct变换-jepg compression Matlab code, using Huffman coding, transform Extra
Platform: | Size: 59392 | Author: zhouyinye | Hits:

[2D Graphic] imagetransformationbymatlab

Description: 1.图像频域处理正交变换的matlab实例 2.含有的频域变换内容如下：正交变换通用算子傅立叶变换傅立叶变换的原理傅立叶性质二维离散傅立叶变换（ 2DDFT ）快速傅立叶变换（ FFT ）傅立叶变换的研究与应用离散余弦变换 DCT 变换矩阵 dct2 函数和 dctmtx 函数 Walsh- Hadamard 变换 Radon 变换 -1. Image processing orthogonal frequency-domain transform Matlab two examples. Containing the frequency domain transform as follows : orthogonal transformation generic operator Fourier transform theory of Fourier transform two-dimensional Fourier nature of discrete Fourier transform (2DDF T) Fast Fourier Transform (FFT) of the Fourier transform and discrete cosine transform matrix dc t2 function and the function dctmtx Walsh-Hadamard transform Radon transform
Platform: | Size: 5120 | Author: 方周 | Hits:

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