Crop command increases file size when cropping iphone jpeg photos

Posted by John Oreopoulos on
URL: http://imagej.273.s1.nabble.com/Crop-command-increases-file-size-when-cropping-iphone-jpeg-photos-tp5010912.html

I have a question about a certain ImageJ behaviour I have observed recently:

When I open a .jpeg image - specifically a photograph acquired with my iphone - when I crop the image to some arbitrary ROI, the file size increases dramatically. For example, if the original image is only 3.2 MB in size, after cropping, it can jump to 13 MB. What is the cause of this behaviour? Is this a bug?

John Oreopoulos
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