MATLAB Answers

How can i save the number of images stored in a cell array to my folder ?

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shikha mangal
shikha mangal on 26 Apr 2016
Commented: Jan on 26 Apr 2016
How can i save all the images stored in a cell array in the matlab directory path,so that i can use them further.What is the syntax of writing multiple images from cell array to the system in jpg format?please help.
for i = 1:numel(myCellArr)
fileName = sprintf('image_%04d.jpg');
imwrite( myCellArr{i}, 'fileName.jpg' );
end
I have used this code but it is not saving all of my images stored in cell but only the last image.'please help me to obtain the desired result.

Answers (1)

Jan
Jan on 26 Apr 2016
Edited: Jan on 26 Apr 2016
Almost correct:
for i = 1:numel(myCellArr)
fileName = sprintf('image_%04d.jpg', i); % "i" required
imwrite( myCellArr{i}, fileName);
end
In your code, you saved the files with the name 'fileName.jpg', but you want tzhe variable called "fileName".
A hint: Do not rely the current directory to be fixed. A graphics or timer callback can change the directory. Better use absolute file names:
folder = 'C:\Temp'; % Or whatever
for i = 1:numel(myCellArr)
fileName = fullfile(folder, sprintf('image_%04d.jpg', i));
imwrite( myCellArr{i}, fileName);
end

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