What the imfinfo function of matlab return size of compressed or uncompressed image?
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I imfinfo function of the matlab return the size of image in bytes. I want to know whether it returns size of the compressed or uncompressed jpeg image?
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Walter Roberson
on 25 Aug 2016
The FileSize field it returns is the size of the file on disk. If you want to know the size of the uncompressed JPEG image you can multiply Width times Height times BitDepth and divide by 8
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Image Analyst
on 25 Aug 2016
Yes. When it's on disk, it's compressed. It only gets decompressed after you call imread() which reads it from disk, uncompresses it, and places it into the variable you specified.
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