How to make a vector of multiple images in double form by using function?

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Hamza Zaheer 2018-11-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/431671-how-to-make-a-vector-of-multiple-images-in-double-form-by-using-function

评论： Jan 2018-11-26

clc;
clear all;
close all;
for i=1:10
c{i}=imread(sprintf('s%d.jpg',i));
w = rgb2gray(c{i});
im = imresize(w,0.25);
mi = double(im);
q= im2vec(mi);
J = imnoise(mi,'salt & pepper')
figure,
imshow(mi)
medianFilteredImage = medfilt2(mi, [50 50]);
figure,
%imshow(medianFilteredImage)
% Find the noise.  It will have a gray level of either 0 or 255.
noiseImage = (mi == 0 | mi == 255);
% Get rid of the noise by replacing with median.
noiseFreeImage = noiseImage; % Initialize
noiseFreeImage(noiseImage) = medianFilteredImage(noiseImage); % Replace.
imshow(noiseFreeImage);
end
%Function
function mi=im2vec(im)
[N M]=size(im);
% for i=1:N
%     for j=1:N
%         mi((i-1)*N+j)=im(i, j);
%     end
% end
for i=1:N
    mi(1, (i-1)*M+1:M+(i-1)*M)=im(i,:);
end

Use rgb2gray command.
Resize to size 50x50 (using imresizecommand).
Make a vector (function is provided, also make it in double form).
Add salt and pepper noise.
Display noisy images.
Remove the noise using a suitable filter.
Display the noise free images.

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Hamza Zaheer 2018-11-26

编辑：Hamza Zaheer 2018-11-26

No, the code does not solve my problem. My actual question is that, I have to read ten images in a loop and make the following changes to the images.I am attaching the images and the function mentioned in point #3 . Thanks in advance!