how calculate the size of image after compressed image

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Noor Abbas
Noor Abbas 2017-9-20
回答： Rik 2017-9-20
how can calculate file size before and after compress image

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Rik
Rik 2017-9-20
This was my first hit on Google for file size Matlab:
im1_stats = dir(filename_image1);
im2_stats = dir(filename_image2);
ratio = im1_stats.bytes./im2_stats.bytes

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