Search - matlab DCT

[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:

[CA auth] DCTWater

Description: 站长！这是DCT域的图像数字水印嵌入及提取程序！请查收！暂归入加密解密类别！-head! This is the DCT Digital watermark embedding and extraction procedure! Please find! Encryption and decryption temporarily classified categories!
Platform: | Size: 1477632 | Author: Jesson | 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:

[Multimedia Develop] dct+ss

Description: dct变换+扩频的数字水印算法水印为随即序列-Extra transform Spread Spectrum Watermarking digital watermarking algorithm for the forthcoming series
Platform: | Size: 18432 | Author: sy | 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:

[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:

[Special Effects] watermark_matlab

Description: 数字水印算法的matlab实现代码，已经通过matlab调试使用，运用了DCT变换-digital watermarking algorithm to achieve the Matlab code debugging through the use of Matlab, use of DCT
Platform: | Size: 1024 | Author: better | Hits:

[Special Effects] dip4

Description: discret cosine transform,DCT-discret cosine transform, DCT
Platform: | Size: 674816 | Author: qu yw | Hits:

[Compress-Decompress algrithms] Scalable_MPEG_compression

Description: 本程序的目的是通过变化DCT系数以及寻找可以应用的DCT系数的最小值来进行可扩展的MPEG压缩，并且能都达到一个可以接收的效果。-the purpose of this procedure is adopted, as well as changes in DCT coefficients can be used to find the minimum value of the DCT coefficients to Progressive firms will be able to expand the MPEG compression, and can achieve an acceptable result.
Platform: | Size: 84992 | Author: 麦田 | Hits:

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