Witryna17 mar 2024 · imshow (log (1+abs (F1)), []); title ('低通滤波后幅度谱'); f2=real (ifft2 (ifftshift (F2))); subplot (3,2,5); imshow (f2, [0,255]); title ('高通滤波后图像'); subplot … WitrynaF2=log (1+abs (F1)); subplot (2,1,1);imshow (f); subplot (2,1,2);imshow (F2, [ ]); B=histeq (A); 使用默认值64灰度级做均衡化 subplot (2,3,4);imshow (B, [ ]); subplot (2,3,5);imhist (B,64); 10.把自己的照片转化为灰度图像,尺寸大小在400×400以内。 做如下操作: (1)添加椒盐、高斯噪声,每种噪声选用两种不同的参数,以对比不同的效 …
imshow(log(1+abs(Hshift)),[]);
Witrynay=log (1+abs (m)); f1=zeros (128); f1 (32:36,32:36)=1; h=fft2 (f1); i=imrotate (h,30); j=fft2 (i); f2=zeros (128); f2 (60:68,60:68)=1; k=fft2 (f2); 6.构造二幅黑白二值图像, … Witryna17 sie 2013 · 利用MATLAB软件实现数字图像傅立叶变换的程序:I=imread (‘原图像名.gif’);%读入原图像文件imshow (I);%显示原图像fftI=fft2 (I);%二维离散傅立叶变换sfftI=fftshift (fftI);%直流分量移到频谱中心RR=real (sfftI);%取傅立叶变换的实部II=imag (sfftI);%取傅立叶变换的虚部A=sqrt (RR.^2+II.^2);%计算频谱幅值A=(A-min (min … cupcake downsouth mount pleasant
Matlab对图像进行傅里叶变换实例 - CSDN博客
Witrynaimshow (log (1+abs (F)), [0,3]); colormap (jet); colorbar * What is the main difference between representing the amplitude and its logarithm? % Look at the phases imshow (angle (F), [-pi,pi]); colormap (jet); colorbar * Try with other images f = imread ('saturn.tif'); f = ind2gray (f,gray (256)); Witryna8 mar 2024 · Matlab实现图像分割. 文章和代码以及样例图片等相关资源,已经归档至【Github仓库: digital-image-processing-matlab 】或者【AIShareLab】回复 数字图像 … Witryna25 lis 2012 · You can use this code: F = fftshift (F); % Center FFT F = abs (F); % Get the magnitude F = log (F+1); % Use log, for perceptual scaling, and +1 since log (0) is undefined F = mat2gray (F); % Use mat2gray to scale the image between 0 and 1 imshow (F, []); % Display the result Share Improve this answer Follow edited Nov 25, … easy breakfast food for potluck