Comment 1 for bug 16128

Created an attachment (id=2143)
Base image for illustration

This image came from
http://www.panicstruckpro.com/revelations/cavern_shoot.html

I am going to sharpen it 10 times in gimp (8 bits per channel) and 10 times in
CinePaint (a hacked up version of an old version of Gimp, with support for 16
and 32 bits per channel) using 16 bits per channel unsigned integers. Results
will be attached as png.