网站首页

登录

image-fourier-transforma-filtering

于 2015-01-24 发布文件大小:1KB

 0  105

下载积分: 1 下载次数: 7

我要下载

代码说明：

此文件一共包含3个m文件。第一个文件的功能是绘制一个二值图像，并显示其傅立叶幅度谱。文件2功能是设计频域理想低通滤波器，并加以验证：读入一个二值图像(cameraman.tif)加噪声后在频域进行低通滤波观察滤波后的图像效果。文件3的功能是对图像eight.tif加入椒盐噪声后，实现Butterworth低通滤波.(This file contains 3 m documents. Functions of first file is to draw a binary image, and displays its Fourier amplitude spectrum. Document 2 is designed to function a frequency domain ideal low-pass filter , and verified it: reading a binary image (cameraman.tif) plus noise on it and smoothing it in the frequency domain using low-pass filtering.The filtered effect will be observed by displaying image.Document 3 is designed to read a binary image(eight.tif) and add salt and pepper noise on it, realized frequence domain Butterworth low-pass filter.)

下载说明：请别用迅雷下载，失败请重下，重下不扣分！

发表评论

0 个回复

butterfly
根据16点DFT算法得出的运算流程图，得到的16点DFT蝶形运算函数(16 point s DFT algorithm)

2013-04-07 11:52:45下载

积分：1
Line-detection-method
提出了一种基于图像边缘连接的线段检测方法。数字图像中的线段是由很多线段图元组成,在同一条线段中,它们的方向是相同的并且受到真实线段的方向约束。因此可以通过提取小的线段图元, 然后分析它们的连接特性, 进行线段的检测。首先用ADM 算法对图像进行边缘检测, 得到单像素宽的边缘然后在4 个方向上进行线段的检测对初步得到的结果进行合并和验证, 去掉短的线段, 连接临近的线段。经过实验证明, 该方法能够快速地提取图像中的线段,并且对噪声具有一定的鲁棒性(A line segment connecting a detection method based on image edges. The segment of the digital image is composed by many segments elements, their orientation is the same and by the real line segment direction constraint in the same segment. By extracting a small segment Element can then analyze their connection characteristics for the detection of the line segment. First with ADM algorithm for edge detection on the image to obtain a single-pixel-wide edge then in the four directions on the detection of the line segments merger and verification of the preliminary results obtained, removing the short line segments, the line segments connected near. The experiments show that this method can quickly extract the line segments in the image, and certain robustness to noise)

2013-04-13 19:12:46下载

积分：1
04
说明：核密度估计，绘制频率直方图、核密度估计图、正态分布密度图(Kernel density estimation, drawing frequency histograms, kernel density estimation map, normal density map)

2014-08-17 17:21:38下载

积分：1
ica-matlab
脑电信号分析 fast ica去噪，去除心电，眼电，肌电，效果不错(fast ica for eeg)

2012-03-18 19:21:32下载

积分：1
PSF
提出一种基于空间域的多聚焦图像融合技术：首先计算点分布函数（PSF），然后利用PSF模糊源图像，最后通过组合原图像中较为清晰的像素点来生成全聚焦图像。(We propose a multi-focus image fusion based on space domain techniques: First calculate the point distribution function (PSF), then use the PSF fuzzy source image, and finally to generate omni-focus image by combining the original image clearer pixels.)

2016-05-20 16:07:37下载

积分：1
zernikeCT
此程序为泽尼克的方法拟合离散点的数据，用于图像处理。(Zernike parameter fitting)

2013-11-16 19:55:34下载

积分：1
opencv
数字图像处理 opencv 一些基本例子和源码(opencv code)

2009-07-12 12:27:37下载

积分：1
prog
image decomposition and reconstruction

2013-02-07 15:40:01下载

积分：1
Texture
计算四个方向的灰度共生矩阵，将其作为纹理特征，是一种纹理特征提取算法。(Calculation of the four directions of Gray Level Co-occurrence matrix as texture features, is a kind of texture feature extraction algorithm.)

2008-03-11 19:51:54下载

积分：1
特征选择与提取zch
自编的用于图像特征提取的源程序,解压后直接运行就ok了(writing for Feature Extraction source, unpacked directly ok on the run)

2020-06-30 02:00:02下载

积分：1

696518资源总数
104269会员总数
31今日下载