permission error while using imwrite () on transformed image

Question

prashant singh 2016-7-9

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/294567-permission-error-while-using-imwrite-on-transformed-image

评论： Image Analyst 2016-7-9

pata.m

i have multiple images in multiple folders. i have perform a deformation on those images and trying to save those images in same folders under the name transform image using imwrite(). but i am getting write permission error . Can anyone help me with this. Please find my code attached.

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Answer 1

Image Analyst 2016-7-9

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https://ww2.mathworks.cn/matlabcentral/answers/294567-permission-error-while-using-imwrite-on-transformed-image#answer_228199

Don't use "image" as the name of your image variable - it's an important built-in function. What is the name of your file you are trying to write? If you comment out the imwrite() line, does the script run fine?

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prashant singh 2016-7-9

在 MATLAB Online 中打开

Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-1\image98.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing folder C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image103.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image108.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image113.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image118.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image123.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image128.jpeg
Warning: Directory already exists. 
> In deform2D (line 58) 
Processing image file C:\Users\PRASHANT\Documents\MATLAB\2Dimages\data\data-10\image133.jpeg

This is what i am getting if i comment down imwrite(). It keeps eso i executing for a large image database so i pasted some part of it

Image Analyst 2016-7-9

在 MATLAB Online 中打开

You can get rid of a lot of the warnings by not calling mkdir if the folder exists:

Replace

mkdir(dataFolderName);

by

if ~exists(dataFolderName, 'dir')
      mkdir(dataFolderName);
end

then you'll have to put the imwrite back in so I can see what the error for that is. Perhaps you can't write to the folder, like it's on a readonly drive or need admin permission or something.

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