MATLAB: Bitmap size and file size

compressionfile exchange fileImage Processing Toolboximfinfo

When I run the code shown in the link http://in.mathworks.com/matlabcentral/fileexchange/13584-compression-ratio, i got the output
Among these what is the difference between ' FileSize ' and ' BitmapSize ' .How this FileSize is calculated here. The formula for compression ratio is also here.

Best Answer

"How this FileSize is calculated here."
Record the output of dir() of the file. Access the "bytes" field of the result.
"' BitmapSize '"
Bitmapsize is Height time Width.
"The formula for compression ratio is also here."
See https://www.mathworks.com/matlabcentral/answers/27322-cr-bit-per-pixel-image-compression#comment_410392
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