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Description: This is the matlab code for SVD-DCT image watermarking
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Size: 5120 |
Author: enda |
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Description: dct变换 高通滤波 并带有原始图像 对于图像处理的初学者很实用-dct transform
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Size: 153600 |
Author: jiangyuhang |
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Description: OFDM仿真程序，信道估计采用LS,MMSE,LMMSE,DCT等方法，做了个比较，ofdm那个是主程序-OFDM simulation program, channel estimation using LS, MMSE, LMMSE, DCT and so on, made a comparison, ofdm that is the main program
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Size: 23552 |
Author: 艳艳 |
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Description: DCT-based Data hiding: dataHide.m Hide the logo image into the original
dataExtract.m Extract the logo image from the original findData.m Verify the robustness of the data hiding method 。and use jpeg compress
-DCT-based Data hiding: dataHide.m Hide the logo image into the original dataExtract.m Extract the logo image from the original findData.m Verify the robustness of the data hiding method. and use jpeg compress
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Size: 5120 |
Author: 潘 |
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Description: Matlab Code for watermarking in DCT
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Size: 1823744 |
Author: Abhishek |
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Description: 3d or more dct implemntation
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Size: 3072 |
Author: lior |
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Description: DCT数字水印算法，我的毕业设计内容，希望大家能够喜欢-DCT digital watermarking algorithm, the contents of my graduation project, hope that we can enjoy
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Size: 20480 |
Author: 马飞 |
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Description: 本文设计基于DCT的人脸识别系统，首先结合当今人脸识别的背景和发展状况讨论了人脸识别的研究内容及在各方面的应用；然后研究了人脸识别进行预处理，讨论了人脸识别预处理的其他方法，分析各种方法的利弊，最后采用DCT（离散余弦变换）实现人脸图像预处理中的降维处理；接下来对人脸图像的特征提取进行了研究，简单叙述了几何特征提取和代数特征提取，同时深入研究了基于DCT和PCA变换的人脸图像特征提取，从而实现是否对人脸识别系统识别率有所提高的研究；对于分类器的选择，本文对两种分类器进行了探讨，即最近邻分类器和BP神经网络分类器，同时采用BP神经网络分类器作为本次基于DCT的人脸识别系统设计的分类器，并对BP神经网络进行分类的算法进行设计，BP神经网络具有学习功能，只要采用本系统对训练图片进行训练，就可以记下图像的相关信息，对于测试图片，就可以很准确的识别出该图片是属于哪个的。最后，本文对整个人脸识别系统设计实验进行了实验分析，实验结果表明本文采用的方法切实有效。- This is the design of the DCT-based face recognition systems. First of all, the background light of the current face recognition and face recognition to discuss the development of research in all aspects of content and applications And then studied the pretreatment of face recognition to discuss the pre-treatment of other face recognition methods,and analysis of the pros and cons of various methods, finally, the use of DCT (discrete cosine transform) image pre-processing to achieve in the face of the reduced-order processing Next on the face image feature extraction have been studied, A brief description of the feature extraction and algebraic geometry feature extraction, while in-depth study based on the DCT and the PCA Transform face image feature extraction in order to achieve face recognition system to identify whether the rate of increase in the research For the choice of classifier, this paper carried out on two of classifier, that is, nearest neighbor classifier and BP neura
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Size: 422912 |
Author: 刘文珍 |
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Description:
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Size: 990208 |
Author: 邓云鹏 |
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Description: 这是一个matlab环境下的离散余弦变换的程序，与matlab的dct程序运行结果一样-This is a matlab environment, discrete cosine transform process, and matlab s dct program runs the same result as
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Size: 1024 |
Author: zhouzixuan |
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Description: 数字水印提取算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
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Size: 1024 |
Author: 肖乐 |
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Description: extract file
and the working is to get dct matrix of 256*256 image which is divide into each 8*8 image block
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Size: 1024 |
Author: sudhir kumar |
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Description: 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，IDCT用来解压缩。-The image sub-block (8* 8) for the DCT transform, and to make IDCT: DCT is a separable image transformations, is used to image compression coding, IDCT is used to decompress.
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Size: 7168 |
Author: zy |
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Description: threshold coding, forward DCT, inversedct, motion compensation, run length coding , zigzag coding etc.,
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Size: 2489344 |
Author: vg_vg |
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Description: dct-svd域水印算法,实现数字水印图像在载体DCT-SVD域的隐藏-a kind of watermarking algorithm in DCT-SVD domain
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Size: 1024 |
Author: 云新 |
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Description: DCT域图像水印嵌入对策和算法，黄继武，程卫东，电子学报-DCT domain image watermarking strategies and algorithms, HUANG Ji-Wu, Cheng Weidong, e-Journal
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Size: 363520 |
Author: gm |
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Description: 用MATLAB实现的数字水印的DCT算法，还包括本次试验的实验报告，对算法有详细的解读！-Implemented using MATLAB DCT digital watermarking algorithm, also including the test lab report, a detailed interpretation of the algorithm!
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Size: 1457152 |
Author: 花有缺 |
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Description: DCT给灰度图像加二值的水印信息，运行显示四幅图，分别是原图像，水印图像，加水印的图像和提取的水印图像-DCT to gray image plus two watermark values, run the show four maps are the original image, watermark image, add watermark image and extracted watermark image
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Size: 1024 |
Author: 花有缺 |
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Description: 一个实用的DCT数字图像水印程序，可以直接运行，包括很多攻击类型以及图片-A practical digital image watermark DCT procedure can run, including many types of attacks, as well as pictures
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Size: 1566720 |
Author: xaoi |
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Description: bmp DCT 压缩
对原图像进行DCT变换，数据压缩，丢弃右下角高频数据，进行DCT反变换，得到压缩后的图像-bmp DCT compression of the original image DCT transform, data compression, discarding the lower right corner frequency data, DCT inverse transform, the images are compressed
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Size: 156672 |
Author: zjj |
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