Task $6$

Save the original image $($spiral$.$jpg$)$ as a $.$mat$$ file. Compare the file sizes of original and compressed $($N$=8)$ images $(.$mat files$).$ Is there a difference in size? Repeat this step for all images provided $($for the fractal image, only use fractal$\_512.$jpg$).$ Which images has the highest and lowest compression ratio $(1-($compressed file size$/$original file size$))?$ What might be the reason?