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Description: 基于dft的水印代码，水印注入、提取、防攻击测试-DFT-based watermarking code, watermark injection, extraction, anti-attack test
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Size: 356352 |
Author: wjp |
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Description: 计DFT，IDFT,FFT,循环卷积，循环移位以及重叠保留法-Of DFT, IDFT, FFT, cyclic convolution, cyclic shift and overlap to retain the Law
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Size: 3072 |
Author: 徐建国 |
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Description: dft数字水印源代码 -DFT Digital Watermarking source code
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Size: 111616 |
Author: chenyuzhong |
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Description: 利用傅里叶变换，在频域上对两幅图像配准，是一种比较配准的新方法，但是对弹性配准的效果不是很好 需要进一步的研究。-Registers two images (2-D rigid translation) within a fraction of a pixel specified by the user. Instead of computing a zero-padded FFT (fast Fourier transform), this code uses selective upsampling by a matrix-multiply DFT (discrete FT) to dramatically reduce computation time and memory without sacrificing accuracy
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Size: 5120 |
Author: wangwei |
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Description: 现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFT/DFT,同步(时间/频率同步)和信道估计,以及频率偏移的估计等一系列代码.希望大家能从中得到你需要的东西.
-Now I finally found a copy of it to the form of FUNCTION, reproduces OFDM mapping, IDFT/DFT, synchronized (time/frequency synchronization), and channel estimation, as well as the frequency deviation of the estimated range of the code. I hope that everyone will be you need.
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Size: 35840 |
Author: 周致远 |
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Description: 该gui函数基本上包括图像处理里面的最基本处理，相当于一个小型photoshop。比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码，行程编码-Basically, the gui functions including the most basic image processing inside the handle, which is equivalent to a small photoshop. For example, read the document, the geometric transformation of the vertical mirroring, shifting, rotating, zooming orthogonal transformation of the DFT, FFT, DCT, DST, DHT, DWashT anti-gray color processing, histogram equalization, global linear transformation , piecewise linear transformation, index of non-linear transform of the number of non-linear transformation image enhancement which increases the noise, smoothing, sharpening, pseudo-color enhancement the gray-scale image segmentation inside the threshold, Robert, Laplace, sobel, prewitt, canny edge detection operator method image restoration inside direct inverse filtering, Wiener filtering image coding inside the Huffman code, and so on Run-Length Coding
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Size: 398336 |
Author: guhuxiang |
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Description: In mathematics, the discrete Fourier transform (DFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function (which is often a function in the time domain). -The file includes matlab source code for DFT and also includes explanation report
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Size: 147456 |
Author: linhu |
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Description: 数字信号处理中的DFT源代码，很实用，希望对大家有用-DFT Digital Signal Processing source code, it is useful, we want to be useful
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Size: 15360 |
Author: 姚涛 |
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Description: 自己编写的基为2的fft程序，输入为时间序列，输出为DFT序列-matlab code that can perform FFT based on radix-2 algorithm
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Size: 1024 |
Author: lipaialice |
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Description: 几种增强算法的总结，MATLAB代码，算法包括有：谱减法，MMSE-LOGSTSA ,MMSE-ST-DFT ,decision-Directed method,multi-band 谱减法等-A summary of several enhancement algorithm, MATLAB code, the algorithm include: spectral subtraction, MMSE-LOGSTSA, MMSE-ST-DFT, decision-Directed method, multi-band spectral subtraction, etc.
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Size: 24576 |
Author: tangxianfeng |
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Description: matlab code that make an image with capability of rotataing, shifting, .. and compute 2-d DFT.
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Size: 1024 |
Author: ali |
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Description: This contain discrete fourier transform code and inverse discrete fourier transform coded in matlab and also contain dfs and idfs
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Size: 1024 |
Author: usman |
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Description: 灰度图像加入和提取水印的matlab实现源码，基于傅里叶域变换。-It s matlab code about embdding and extracting watermark to gray image,using DFT.
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Size: 821248 |
Author: 张玉 |
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Description: 图像处理matlab源代码，主要使用傅里叶变换。-Image processing matlab source code, primarily using the Fourier transform.
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Size: 1024 |
Author: gxc |
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Description: 利用DFT变换实现数字水印的源代码，请大家赐教-the code about the digital watermark in the region of DFT，using matalab
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Size: 3072 |
Author: wangmin |
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Description: 对数字图像处理中的离散傅里叶变换(DFT),离散余弦变换（DCT）进行了详细的分析。其中DFT包括log视觉处理，中心点移动等。DCT包括分块处理，和保留较少系数，并比较结果。-Digital image processing of the discrete Fourier transform (DFT), discrete cosine transform (DCT) for a detailed analysis. DFT which include the log of visual processing, the center of movement. Including sub-block DCT processing, and retention of small coefficients, and compare the results.
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Size: 390144 |
Author: pxjy |
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Description: Matlab code to find DFT
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Size: 4096 |
Author: mmit |
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Description: This the Matlab code for DFT of a sequence. We used TMS320c6713 processor for the operation part.-This is the Matlab code for DFT of a sequence. We used TMS320c6713 processor for the operation part.
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Size: 8192 |
Author: P Sreekanth |
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Description: 最基础的数字信号处理关于DFT,IDFT,FFT可以直接matlab运行(dft.m idft.mThis is a very good button source code complete and can be used directly)
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Size: 46080 |
Author: 晴晴晴晴晴 |
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Description: 滑动DFT实现短时傅里叶变换的matlab代码，包括正变换和逆变换，可极大提高时频分析的计算效率(Sliding DFT to realize short-time Fourier transform matlab code, including positive and inverse transforms, can greatly improve the efficiency of time-frequency analysis.)
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Size: 1024 |
Author: yuanDoctor |
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