rename file extension from 1.png to 001.png and so on
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hi everyone,can I know how to rename the extension of 1.png to 001.png in matlab script!for your information, from the loop of my coding, the file has been created as 1.png and saved in a folder. however, I want to name the file as 001.png in my matlab script. how to do it.besides, if I have more than one file I should make it automatically rename as 001.png, 002.png ,003.png. how to make it? thank you.
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Accepted Answer
Azzi Abdelmalek
on 12 Oct 2012
Edited: Azzi Abdelmalek
on 12 Oct 2012
folder='D:\answers\'
for k=1:1
file1=sprintf('%d.png ',k)
file2=sprintf('00%d.png',k)
dos_com=['!rename ', folder file1 file2]
eval(dos_com)
end
Edited code (Simon's suggestions)
folder='D:\answers\' % e.g
for k=1:4
file1=[folder sprintf('%d.png ',k)]
file2=[folder sprintf('00%d.png',k)]
movefile(file1 ,file2]
end
23 Comments
Walter Roberson
on 15 Oct 2012
Have you moved the existence test to before you imwrite() ? Are you doing something meaningful when you find that the file exists?
And are you truly wanting to output exactly the same output file for BlobsNo's worth of files ? Notice that once you have converted the image to grayscale when k=1, and resized to 40 x 40, that subImage will remain grayscale and 40 x 40 for all the rest of the values of k.
More Answers (1)
Walter Roberson
on 12 Oct 2012
Edited: Walter Roberson
on 12 Oct 2012
Also,
sprintf('%03d.png', FileNumber)
to get the leading zeros
1 Comment
Image Analyst
on 12 Oct 2012
As will the traditional C-like way:
baseFileName = sprintf('%3.3d.png', FileNumber);
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