ah yes you are correct is per channel, my bad. You think thats what slows pharo down ?

On Sat, Jan 16, 2016 at 6:55 PM Hilaire <hilaire@drgeo.eu> wrote:
8 bits * 4 = 32 bits right?

Le 15/01/2016 22:32, Dimitris Chloupis a ��crit :
>
> The images are PNGs and RGBA , 8bit
>

--
Dr. Geo
http://drgeo.eu