On 03/09/2010 04:39 PM, Jon Senior wrote: > On Tue, 09 Mar 2010 16:30:58 -0500 > Jay Smith <jay@xxxxxxxxxxxx> wrote: > >> I am not sure where the "standard" that you mention comes from. I had >> never seen black at bottom left (by default) until I started to use >> Gimp. >> >> Is there some actual scientific standard underlying that? Or just >> majority of programs? Or the programs you have used? Or? >> >> Maybe the programs I have used in the past were backward. > > I would suggest that they were. The "curves" are graphs plotting value > in (x) against value out(y). Traditionally a graph starting at 0 for > both axes would be drawn with the origin in the bottom-left. > > This naturally leads to a curves graph where black (0) is in the > bottom-left and white (255/1023/...) is in the top-right. > > What programs have you used where this situation was reversed? > > Jon Jon, That is certainly possible. The one that most comes to mind is Photoshop 5.x. I have no idea what "modern" Photoshop and successors do. Jay _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer