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I am using the imwrite function as imwrite(newh,'F:\preeti code\Barba​raTUF2.jpg​','Quality​',100,'Mod​e','lossle​ss'); after this image is generated by my code. It writes a blank white image.But I can see the original image .I have reinstalled MatlabToo

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I am using Matlab 2013. File size after imwrite is 2Kb whereas earlier I used to get 32Kb image size. Changed Image Viewer too. Also checked on Matlab 2017 also. Same issue. What could be the problem?
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Rik
Rik on 22 Aug 2018
Often when images show up as white the cause is a conversion to double without rescaling the value. You can check this by running the following code and reporting what the output is.
fprintf('Size is '),fprintf('%d,',size(newh),fprintf('\n')
fprintf('Class is: %s\n',class(newh))
fprintf('Values range from %.1f to %.1f (mean %.1f)\n',min(newh(:)),max(newh(:),mean(newh(:))

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