How to save filenames

Hello friends,

I want to save files with dynamic name so I wrote the code:

for n=1:Ne
    [r,c] = find(L==n);
    n1=imagen(min(r):max(r),min(c):max(c));
    imshow(~n1);
    imwrite(~n1, n, 'png');

But the file is not saved, is there any mistake in the code? Please guide.

Answer 1

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F for good sample code.

Your problem is you didn't look in the help to see what the proper arguments are for imwrite

imwrite(~n1, n, 'png');

is not correct. You need to come up with a filename, such as

baseFileName = sprintf('%d.png', n);
fullFileName = fullfile(yourFolder, baseFileName); % yourFolder can be pwd if you want.
imwrite(n1, fullFileName);

The format argument 'png' is not needed because it determines the format from the filename.

Answer 2

[Azzi Abdelmalek]

imwrite(~n1, n, 'png');

Will not save any file, n is not a valid file name.

What does ~n1 represent?

[Sayed]

It is simple image data

[Azzi Abdelmalek]

Ok, what about your file name?