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work.rar
- 常用图像压缩编码码matlab实现。包括:DM编码、变换编码(FFT和DCT)、算术编码、行程编码、Huffman编码、线性预测编码和一个近似的JPEG编码过程。非常适合入门用户实践。,Commonly used image compression coding matlab code to achieve. Including: DM coding, transform coding (FFT and DCT), arithmetic coding, Run-Length Coding, Hu
first
- 二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform The purpose of this project is to develop a 2-D FFT program "package" that will be used in several other projects that follow. Your implementation must have the capabilitie
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见,经DCT低通滤波后,图像变得很模糊。因为DCT是FFT取其实部,能量减少,因此图像变得很模糊,没有经FFT滤波后的效果好。 经DCT高通滤波后的图像: 经DCT高通滤波后,图像的低频部分被滤除掉,图像变黑,只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
picture
- 利用FFT快速运算技术来实现在二维图像领域上的稀疏分解过程。-The use of FFT techniques to achieve fast computing in the field of two-dimensional image of the sparse decomposition process.
fftfir
- 加带通滤波器的FFT开源代码,附带批处理程序-FFT band-pass filter plus open-source code, with a batch process
fft
- matlab 数字图像信号的频域分析及仿真 将二维数字图像进行傅立叶频域分析,并且做了图像幅度谱重建和相位谱重建,通过这个例子大家可以明白相位比振幅更重要。-matlab digital image signals in frequency domain analysis and simulation of two-dimensional digital image Fourier frequency domain analysis, and has done a reconstructio
FFT
- 应用MATLAB语言编写低通滤波器,对含噪图像作低通滤波处理- Using the MATLAB language compilation low pass filter, to contains chirp the image to make low-pass filtering processing
tuxiangyasuo
- 一系列展示图像压缩技术的源代码。包括有:使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除。-Image Compression A collection of simple routines
NLmeansfilter0
- 图像去噪的快速算法,利用SSI和FFT.毕设的内容,效果还是不错的。-based NL-means filter,fast mean with SSI and FFT
yanshejisuan-MATLAB
- 功能: 菲涅耳衍射的S-FFT计算 执行:调入一图像,计算平面波照射下给定波长及距离的衍射场振幅图像 -Given wavelength and the distance of the diffraction field amplitude image function: Fresnel diffraction of the S-FFT calculation of Execution: transferred to an image, computing the plane wave
2Dimensional-FFT
- 二维FFT的MATLAB实现,包括:简单图像及其傅里叶变换,真彩图像及其傅里叶变换谱 -Two-dimensional FFT in MATLAB, including: simple image and its Fourier transform, true color image and its Fourier transform spectroscopy
Matlab-FFT-IFFT
- 对信号进行FFT 及IFFt转换的matlab源代码,并且计算转化前后的误差,并绘制响应图像。-FFT of the signal conversion and IFFt matlab source code, and calculation errors before and after conversion, and draw a response image.
fft-matlab
- 使用Matlab对一集体函数进行fft计算,并绘制复制图像,并减小栅格效应-Using Matlab fft function on a collective basis, and draw copy the image and reduce the effect of the grid
fft
- 使用MATLAB编写代码实现图像处理的傅立叶原函数-The Fourier function of MATLAB image processing
liefang
- 利用matlab针对图像进行马氏距离计算 ,虚拟力的无线传感网络覆盖,基于kaiser窗的双谱线插值FFT谐波分析。- Using matlab to calculate the Mahalanobis distance for the image, Virtual power wireless sensor network coverage, Dual-line interpolation FFT harmonic analysis kaiser windows.
fengjui
- 意信号卷积的运算,并且绘制图象,基于kaiser窗的双谱线插值FFT谐波分析,利用matlab针对图像进行马氏距离计算 。- Convolution operation is intended to signal and image rendering, Dual-line interpolation FFT harmonic analysis kaiser windows, Using matlab to calculate the Mahalanobis distance for the i
FFT
- 主要实现傅里叶变换的Matlab程序,程序带有输出波形图像(The main realization of the Fourier transform Matlab procedures)
Code_for_Frequency_Domain_Image_Filtering
- 该程序使用MATLAB fft函数处理频域图像数据并返回输出。包含一个测试.mat文件。(This program uses the MATLAB fft function to process image data in the frequency domain and return output. A test .mat file is included.)
matlab
- 由两组已知的振动波形数据(excel表格形式),运用matlab生成对应的波形,利用FFT生成频谱图。要求将所有图像生成在一个图框下。包含设计文档和代码(Two groups of known vibration waveform data (excel form), using MATLAB to generate the corresponding waveform, using FFT to generate spectrum. Contains document reports and
数字图像处理3
- 任务1。一维测试信号的FFT 计算和可视化长度为B=64的下列测试信号的傅立叶变换的幅度: 任务2。二维测试信号的FFT。计算和可视化尺寸为128*128的下列测试信号的傅立叶变换的幅度: 任务3。图像的FFT 在以下处理之后,计算下列图像“Lena”的傅立叶变换的幅度并将其可视化:1)向测试图像添加一个加性高斯噪声(选择您选择的噪声的参数)。 2)使用大小为3*3和5*5的盒式滤波器对测试图像进行平滑。 3)应用Sobel梯度掩模寻找梯度图像的x和y分量。 4)应用拉普拉斯口罩。比较处理