Description: 这是一个图像处理的滤波程序，用matlab实现的。-This is an image processing filter procedures, using Matlab to achieve. Platform: |
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Author:李芹 |
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Description: 这是一个图像处理的滤波程序，用matlab实现的。-This is an image processing filter procedures, using Matlab to achieve. Platform: |
Size: 1024 |
Author:李芹 |
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Description: 利用小波变换原理去除图像中的噪声，并可与中值滤波比较。-Principle of using wavelet transform to remove image noise, and compared with the median filter. Platform: |
Size: 2048 |
Author:江寒 |
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Description: 这是一个matlab程序,用双边滤波器实现了图像内插.-This is a matlab program, using the bilateral filter to achieve an image interpolation. Platform: |
Size: 2048 |
Author:Lili |
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Description: 用维纳自适应滤波器对数字图像进行滤波
程序说明：
本程序在Matlab 6.5 下调试通过
将“程序”目录下的所有文件考到Matlab的“work”目录下，然后在Matlab的command window输入 WienerFilter,回车即可-Using Wiener adaptive filter for digital image filtering process Description: This procedure in Matlab 6.5 under the debugger through the Platform: |
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Author:none |
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Description: ％ Image_Filt Performs linear and nonlinear spatial filtering.
％ F = Image_Filt(G, TYPE, M, N, PARAMETER) performs spatial filtering
％ of image G using a TYPE filter of size M-by-N. Valid calls to
％ Image_Filt are as follows: - Image_Filt Performs linear and nonlinear spatial filtering. F = Image_Filt (G, TYPE, M, N, PARAMETER) performs spatial filtering of image G using a TYPE filter of size M-by-N. Valid calls to Image_Filt are as follows: Platform: |
Size: 1024 |
Author:allen |
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Description: 使用傅立叶变换对图像的条纹噪声进行滤除，分别使用了理想低通滤波、巴特沃兹低通滤波和高斯低通滤波进行处理-The use of Fourier transform on the image to filter out the noise of the stripes, respectively, using an ideal low-pass filtering,巴特沃兹Gaussian low-pass filtering and low pass filter to deal with Platform: |
Size: 135168 |
Author: |
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Description: 用matlab编写的图像复原源代码，采用维纳滤波复原技术，可对模糊和加噪的图像实现精确复原。-Prepared using matlab source code image restoration using Wiener filter restoration technology, can be vague and processors realize accurate image noise resilience. Platform: |
Size: 1024 |
Author:cwb |
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Description: 多尺度图像技术指对图像采用多尺度的表达，并在不同尺度下分别进行处理，也称多分辨率技术
金字塔是一种有效的多尺度表达结构
构建高斯金字塔和拉普拉斯金字塔
高斯低通滤波器
对应高斯金字塔中相邻两层图像差的带通滤波器
-Multi-scale imaging technology refers to the image using multi-scale expression, and in different scales, respectively, for processing, also known as multi-resolution technology pyramid is an effective expression of the structure of building a multi-scale Gaussian pyramid and Laplacian pyramid, Gaussian Gaussian low-pass filter corresponding to adjacent two-story pyramid with poor image bandpass filter Platform: |
Size: 1024 |
Author:Mingruixia |
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Description: 摘要:为了提高图像复原算法的性能 ,提出了一种改进的奇异值分解法估计图像的点扩散函数。从图像的退化离散模型
出发 ,对图像进行逐层分块奇异值分解 ,并自动选取奇异值重组阶数以减少噪声对估计的影响。利用理想图像奇异值向
量平均能谱指数模型 ,估计点扩散函数奇异值向量的频谱 ,再反傅里叶变换得到其时域结果。实验结果表明 ,该方法能
在不同信噪比情况下估计成像系统的点扩散函数 ,估计结果比原有估计方法有所提高 ,有望为图像复原算法的预处理提
供一种有效的手段。-Abstract : To improve the performance of image restoration algorithms , a modified Singular Value De2
[ ] [ ]
composition SVD method was proposed to estimate the Point Spread Function PSF of an imaging
system. Using the discrete image degradation model , a block2based SVD filter scheme was applied for
the image denoising with an automatically determined singular value rank. After the spectra of PSF
singular vectors were estimated under an exponential model for the averaged spectra of un2degraded
image singular vectors , the IFFT was used to get the time2domain estimation of the PSF. The experi2
mental results show that this proposed method can be applied to estimate the PSF of the imaging sys2
tem under a wide SNR range and its performance is better than the original method. It may be used as
an effective method for the image preprocessing in image restoration problems.
[ ]
Key words: image restoration Point Spread Function PSF block2based Singular Value Decomposi2 Platform: |
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Author:zy |
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Description: (1)利用高斯滤波器函数，用Matlab语言，编写Canny边缘检测器的Matlab（或C语言）函数；
(2)利用上述函数，对一副图像（椒盐噪声或高斯噪声）进行边缘检测；
(3)利用Matlab自带的Canny边缘检测函数对同一副图像进行边缘检测；
(4)比较上述两个结果。
-(1) the use of Gaussian filter function, using Matlab language, the preparation of Canny edge detector Matlab (or C language) function (2) the use of the above-mentioned function, an image of the (salt and pepper noise or Gaussian noise) for edge detection (3) the use of Matlab built-in Canny edge detection function to the same Vice-image edge detection (4) compare the results of the two. Platform: |
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Author:amy |
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Description: MATLAB医学影像处理实验(内含14个原代码及教学的说明)
(1)Plot a sine function using MATLAB, and write the data into a file
(2)Read data from a file, plot a SINC function, and append the result back to the same file
(3)Plot a Gaussian distribution using MATLAB
(4)Fourier transform of a square function is a SINC function
(5)1-D low-pass filters and their point-spread functions
(6)2-D low-pass filters and their point-spread functions
(7)Fourier Transform of circles and an ellipse
(8)Image rotation and magnification
(9)MR k-space data reconstruction and low-pass filter
(10)Display an image in gray level
(11)Display an image in color
(12)Region of interest selection and display
(13)Cross correlation between temperature and humidity
(14)Independent component analysis of mixed music files -MATLAB Medical Image Process Experiments (including 14 source code and course documents)
(1)Plot a sine function using MATLAB, and write the data into a file
(2)Read data from a file, plot a SINC function, and append the result back to the same file
(3)Plot a Gaussian distribution using MATLAB
(4)Fourier transform of a square function is a SINC function
(5)1-D low-pass filters and their point-spread functions
(6)2-D low-pass filters and their point-spread functions
(7)Fourier Transform of circles and an ellipse
(8)Image rotation and magnification
(9)MR k-space data reconstruction and low-pass filter
(10)Display an image in gray level
(11)Display an image in color
(12)Region of interest selection and display
(13)Cross correlation between temperature and humidity
(14)Independent component analysis of mixed music files Platform: |
Size: 2280448 |
Author:江儜昶 |
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Description: 关于Steerable filtering decomposition 的matlab程序,- STEERGAUSS Implements a steerable Gaussian filter. This m-file can be used to evaluate the first directional derivative of an image, using the method outlined in:
W. T. Freeman and E. H. Adelson, "The Design and Use of Steerable Filters", IEEE PAMI, 1991. Platform: |
Size: 388096 |
Author:张宇 |
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Description: 用matlab实现的快速均值算法，可以实现对图像去除噪声。-Using matlab to achieve fast means algorithm, can achieve an image to remove noise. Platform: |
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Author:周 |
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Description: the use of Gaussian filter function, using Matlab language, the preparation of Canny edge detector Matlab (or C language) function (2) the use of the above-mentioned function, an image of the (salt and pepper noise or Gaussian noise) for edge detection (3) the us Platform: |
Size: 288768 |
Author:Leonardo |
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Description: 采用五种算子对图像进行空域滤波处理，实现去模糊效果。-Using five kinds of operators on the image spatial filter processing, and to the blurring effect. Platform: |
Size: 220160 |
Author:lixiaozhui |
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Description: 边缘检测1.制作一张包括色块、线条的单色背景图片，先对其作低通滤波产生一幅色块和线条边缘模糊的降质图片待处理，采用任意二种边缘检测算法检测待处理图片中的色块和线条的边缘，得到二值化的处理结果图。从结果图中提取色块和线条的边界坐标值，与实际生成原始图像时采用的真实坐标数据作比较，对产生的检测误差作分析。2.拍摄一张包含待检测物体的黑白或者彩色照片，试采用一种边缘检测的算法做待检测物体的自动提取，对生成的结果作分析。-Edge Detection 1. To produce a including blocks of color lines color the background picture, the first of its low-pass filter for a color blocks and lines produced lower quality images fuzzy edges to be processed, using any two edge detection algorithm to detect when processing in the image blocks of color and line the edge of the two values are the result of the treatment plan. Extracted from the results map the boundary blocks of color and line coordinates, the original image and the actual generated coordinate data used to compare the true, and on the detection of error for analysis. 2. Take a test to be included black and white or color photographs of objects, try using a edge detection algorithm on automatic extraction of objects to be detected, the results generated for analysis. Platform: |
Size: 661504 |
Author:tosh |
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Description: matlab对一幅图像，采用半径值为20、80、200的截止频率进行理想低通滤波，观察其结果。要求给出原图像及相应的付利叶频谱图和滤波结果-For an image, using the radius value of the cutoff frequency 20,80,200 ideal low-pass filter to observe the results. Required to give the original image and the corresponding Fourier spectrum and filtering results Platform: |
Size: 1024 |
Author:么西1983 |
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Search - filter an image using matlab