Zitat von Graeme Geldenhuys <[EMAIL PROTECTED]>: > On Fri, Nov 28, 2008 at 3:14 PM, Michael Van Canneyt > <[EMAIL PROTECTED]> wrote: > > > > On Thu, 27 Nov 2008, Mattias Gaertner wrote: > > > >> As far as I can see, fpImage has for StretchDraw only the > >> TMitchelInterpolation. > > > > This is not correct. This is the standard interpolation used. > > But you can use other interpolations. The extinterpolation.pp > > unit contains other interpolations (6 or 7) that can be used > > with the StretchDraw implementation.
Thanks. Impressive list. But they have all the same problems. They create an unnecessary temporary image and have a fixed max support. Maybe I misunderstand the computation. I would expect a mapping of a linear distribution 0..1 to a mitchel, gauss, bilinear, ... distribution 0..1. Something like diff:=Filter(diff*MaxSupport); I will extend my function, so that you can use any of the other interpolations. > > But additional interpolations are always welcome. Ok. I will extend it and you can add it to this unit. > fpGUI doesn't use fpImage yet, but I did borrow the StretchDraw() code > from there. And yes, you can specify a whole bunch of other > interpolations to use. If memory serves me well, fpGUI has a few more > interpolations than fpImage. When I start implementing fpImage support > in fpGUI, I will contribute those to FCL. I'm curious: who needs more than 13 different image interpolations? Mattias _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
