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imwrite function and permission error

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bkshn
bkshn 2014-9-11
回答： aditya chiliveri 2016-6-23
I read any question and answer about my problem, but I couldn't find my solution. I checked read only about my folder. I use mkdir , but I can't do it. Could you help me more. Thanks alot
K>> imwrite(a1,'C:\Users\Bahar\Documents\Uni\Thesis\IMP\930620','jpg');
Error using imwrite (line 455) Unable to open file "C:\Users\Bahar\Documents\Uni\Thesis\IMP\930620" for writing. You may not have write permission.

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采纳的回答

Geoff Hayes
Geoff Hayes 2014-9-11
bkshn - I get the same error message if trying to do something similar. But look closer at the error message
Unable to open file "C:\Users\Bahar\Documents\Uni\Thesis\IMP\930620"
No extension is being supplied to the file that is being opened. Try including the extension in the file name (it isn't enough to just supply the output format of jpg) as
imwrite(a1,'C:\Users\Bahar\Documents\Uni\Thesis\IMP\930620.jpg','jpg');
The above worked (for me) when I included the extension.

更多回答（1 个）

aditya chiliveri
aditya chiliveri 2016-6-23
I had the same issue of write permission.
Try checking if the file which you want to write already exists in the folder by below script
if exist('folder\filename.jpg', 'file')
delete('folder\filename.jpg')
end
Then try saving again by imwrite

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