writing a sequence of images inside a for loop using matix

i have sequence of images formed by processing inside a for loop. I need to write them into a new folder using the concept of matrix

Answer 1

[Geoff Hayes]

Jishnu - since your code produces a new image at each iteration of the for loop, then you could do something like the following

 % initialize the folder/path
 folderToSaveImg = '/Users/myName/someDirectory/images';

 % do your loop
 for k=1:100

    % do the processing to create the image named img
    img = randi(255,100,100,3);  % example only

    % create the file name
    fileName = sprintf('image%d.mat',k);

    % join the file name to the folder name
    fileDestination = fullfile(folderToSaveImg, fileName);

    % save the image as a matrix
    save(fileDestination,'img');

 end

The above code (example only) will save 100 images from the sequence to individual mat files where the data stored in the file is a three dimensional matrix.

[Jishnu C Rajan]

my aim is to store each image using a matrix having the same size of image formed. this code returns a sequence of matrix. But I need output as images itself

[Geoff Hayes]

Since you want to store the image as an image rather than a matrix, then just choose the format of the image (to save to) and use that instead. Replace much of the above loop with

 % create the file name
 fileName = sprintf('image%d.bmp',k);

 % join the file name to the folder name
 fileDestination = fullfile(folderToSaveImg, fileName);

 % save the image to file
 imwrite(img, fileDestination);

The last line will write the image to file in the bitmap format.

[Image Analyst]

Jishnu, your comment seems to indicate that you think an image and a matrix are different things. Why is that? In MATLAB, an image is a matrix, so you don't need 2 things: an image and some separate matrix. They are one and the same.

[Jishnu C Rajan]

thanks alot