Nils Kehrein wrote:
the thumb creation is a bit curious:
The thumbnail of a 14 KB PNG file is more than twice as large as the
original image. Just have a look at it:
http://de.wikipedia.org/wiki/Dune_II
And 36 KB only for a 180 x 112 PNG is more than strange...
The reason for this is that your original image(s) is/are 8-bit
(256-colour paletted), while the auto-generated thumb-nail(s) is/are
24-bit (RGB-channel true colour).
In the original screenshot(s), using 256 colours makes sense if the
original game runs in that graphics mode anyway. However, the
scaled-down image(s) may (and do(es)) use sampling to reduce the amount
of loss of detail. Thus, using 24-bit RGB for it also kind of makes sense...
Greetings,
Timwi