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Description: 基于纹理谱的图象特征提取程序,用于图象与视频的分析与识别,该算法基于OpenCV.-based on the texture spectrum image feature extraction process for image and video analysis and identification, The algorithm is based on OpenCV.
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Size: 1392 |
Author: guolijun |
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Description: 这是一个用Matlab编写的程序集，可以实现一些声音和图象的处理。声音的处理有：LPC，FFT，共振峰，频谱等。图象的处理也有很多，都有源代码和参考代码。还有非常友好的界面。-This is a Matlab prepared by the procedure set, can achieve some of the voices and image processing. Voice processing : LPC, FFT, formants and spectrum. Image processing there are many, have the source code and reference code. There are extremely friendly interface.
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Size: 13715328 |
Author: lijin |
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Description: 扩频水印技术的MATLAB程序-Spread Spectrum Watermarking MATLAB
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Size: 46080 |
Author: 吉兵 |
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Description: 这是一个matlab环境下的关于图像频谱分析的源代码，内附图像。-This is a Matlab environment on the image spectrum analysis of source code, containing images.
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Size: 825344 |
Author: 丁烨 |
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Description: 1.二值图像的fft分析
2.显示频谱图像，频谱的零频率系数被移到频谱中间
3.填充矩阵填充后的情况比较
4.绘图直观形象-1. Binary Image fft analysis 2. Image shows the spectrum, Spectrum coefficient of zero frequency spectrum has been moved to the middle three. Filled Filled matrix compared to the situation after four. Mapping visual image
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Size: 1024 |
Author: 方周 |
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Description: 基于纹理谱的图象特征提取程序,用于图象与视频的分析与识别,该算法基于OpenCV.-based on the texture spectrum image feature extraction process for image and video analysis and identification, The algorithm is based on OpenCV.
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Size: 1024 |
Author: guolijun |
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Description: 这是一个用Matlab编写的程序集，可以实现一些声音和图象的处理。声音的处理有：LPC，FFT，共振峰，频谱等。图象的处理也有很多，都有源代码和参考代码。还有非常友好的界面。-This is a Matlab prepared by the procedure set, can achieve some of the voices and image processing. Voice processing : LPC, FFT, formants and spectrum. Image processing there are many, have the source code and reference code. There are extremely friendly interface.
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Size: 13715456 |
Author: lijin |
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Description: 平均周期图法 重叠和不重叠分段 功率谱估计-Average periodogram overlapping and non-overlapping sub-power spectrum estimation
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Size: 1024 |
Author: xuyan |
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Description: 实验内容：
1．求下列3个模板的频率响应，并显示其三维图形；选择一幅图
像，利用这3个模板分别对该图像进行卷积运算，将卷积运算
获得的图像与原始图像进行比较，说明各模板的类型以及模板
（b）、（c）的区别与联系。
2. 选择一幅图像，对其进行离散Fourier变换，仅利用其相位谱重构原图像，然后仅利用其振幅谱重构原图像，比较实验结果；
选择两幅不同类型的图像，分别进行Fourier变换，交换二者的相位谱后求Fourier反变换，比较实验结果，说明图像Fourier相位谱的重要性。-Experimental contents: 1. Template for the following three frequency response and to show its three-dimensional graphics select an image using the three templates, respectively, of the image convolution operation, the convolution operation to obtain the images were compared with the original image to illustrate the template the type of template (b), (c) the difference with the contact. 2. Select an image, its discrete Fourier transform, only to use its phase spectrum remodeling the original image, and then only the use of its amplitude spectrum reconstruction of the original image to compare experimental results choice of two different types of images, respectively Fourier Transform, the exchange between the two after the phase spectrum for Fourier Transform, compare experimental results to illustrate the image of the importance of Fourier phase spectrum.
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Size: 1024 |
Author: syq |
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Description: 图像经过二维傅立叶频谱分析后，用此函数可以求取频谱的环向、楔向特征。在图像分析中具有较大用途。-After two-dimensional Fourier spectrum image analysis, this function can be used to strike a spectrum of the ring, to the characteristics of wedge. In the image analysis with a larger purpose.
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Size: 6144 |
Author: zhai1 |
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Description: 扩频水印算法的程序,实现原始图像的读入,水印的嵌入以及水印的提取等-Spread Spectrum Watermarking Algorithm procedures realize the read original image, watermark embedding and watermark extraction, etc.
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Size: 2048 |
Author: 林非 |
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Description: 高阶谱的计算，主要针对数字图像处理中的能量谱-The calculation of higher-order spectra, mainly for digital image processing in the energy spectrum
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Size: 5120 |
Author: 肖新华 |
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Description: Matlab做的关于三角波，正弦波，方波的FFT算法，可以分析方波信号、三角波信号的频谱以及采样点数、采样频率对频谱分辨率的影响。-Matlab to do on the triangle wave, sine wave, square wave of the FFT algorithm, can be analyzed square-wave signal, triangular wave signal of the spectrum as well as the sampling points, the sampling frequency affect the resolution of the spectrum.
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Size: 1024 |
Author: venppen |
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Description: 用短时傅立叶变换对信号进行时频分析，并有频谱图随着窗的大小进行的对比。-Using short-time Fourier transform of the signal time-frequency analysis and frequency spectrum as the window size of the contrast.
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Size: 1024 |
Author: yt |
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Description: 把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一
％致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比。-The I, Q signals, respectively, for the two FFT, to identify the range of frequency domain signal can be considered two-way range of 1 weight of the letter I, Q synthesis of two-way signal a plural signal for FFT, to obtain the spectrum for image rejection ratio.
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Size: 1024 |
Author: 林恩 |
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Description: 提出一种基于分形理论和BP 神经网络的航空遥感图像有监督分类方法。该方法尝试将航空图像
的光谱信息和纹理特征相结合。它首先将彩色航空图像由RGB 格式转化为HSI 格式,然后,根据亮度计算分
数维、多重分形广义维数谱q-D( q) 和“空隙”等基于分形的纹理特征,同时加入归一化的色度和饱和度作为光
谱特征,采用BP 神经网络作为分类器。通过对彩色航空图像的分类实验,结果证实该方法行之有效。-Based on fractal theory and BP neural network of aviation remote sensing image supervised classification method. This method tries to aerial images of the spectral information and texture characteristics of the combination. It will first color aerial images from the RGB format into HSI format, and then, according to the brightness calculation of fractal dimension, the generalized multi-fractal dimension spectrum qD (q) and the
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Size: 274432 |
Author: xuhuoping |
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Description: 基于OpenCV的源码， 实现了利用DFT离散傅里叶变换计算图像的功率谱。-OpenCV based on the source, the use of implementation of the Discrete Fourier Transform DFT calculation of the power spectrum image.
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Size: 99328 |
Author: 无梦 |
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Description: 王颖：数字图像水印 用扩频方法实现数字水印-Wayne Wang: Digital image watermarking method using spread-spectrum digital watermarking
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Size: 2048 |
Author: |
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Description: 周期高斯一介导、高斯二介导即高斯脉冲（即UWB信号）的功率谱图像，对应不同的占空比和不同的脉冲形式，随着阶数的增加中心频率右移，频谱也为高斯形式，且随着周期数增多，呈现线谱形式-Cycle Gaussian ordinary derivative, ie the Gaussian two-mediated Gaussian pulse (the UWB signal) of the power spectrum image, corresponding to different pulse duty cycle and a different form, with the increase of the order of the center frequency shifted to the right, the spectrum also Gaussian form, and with the number of cycles increased, showing the form of line spectrum
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Size: 5120 |
Author: 周玉佳 |
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Description: 交换两幅图像的相位谱，利用频域滤波消除周期噪声！-Exchange of two images of the phase spectrum, using frequency domain filtering periodic noise elimination!
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Size: 93184 |
Author: 王岚 |
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