Comment 5 for bug 597689

Recalculating in Inkscape does not seem to do anything at all.

I've now tried this with three different images.

6427x4065 JPEG - Constant increase in memory by about 30 MB per show/hide.
1158x800 JPEG - No noticable increase.
3452x4050 PNG - Up to 60~70MB per show/hide. This is the image that made me write the issue in the first place.

I don't have the ability to test multiple image sizes and types right now, but I can say that it has definitely got something to do with large PNG files. As previously stated, linking to this PNG causes no increase whatsoever.