Well, if it's not in the docs, you know what to do - they're open and take comments for a reason :)
--Tim ________________________________ From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of Bjorn Schultheiss Sent: Thursday, 2 July 2009 4:04 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Bitmap downsampling Can't believe this cost me 9 hours of brain time and the answer was in a constant all along. StageQuality.BEST Where's the documentation for this???? No-one is using, not even Aviary. thanks anyway Timmaay.. --- In flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>, Tim Rowe <tim.r...@...> wrote: > > Bjorn, > Does the current method you're using appear to have any anti-aliasing at all? > > In the past, resizing with Image using img.resize((height, width), > Image.ANTIALIAS) (where img is mx.controls.Image) has worked - I'm sure > there'd be a similar method for BitmapData. Of course, if you're not > specifying antialiasing and the method call doesn't assume it by default, > then yeah, you're going to get horrible image quality on downsize as a > typical algorithm will pick nearest-neighbor to the new target pixel. > > --Tim > > ________________________________ > From: flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com> > [mailto:flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com>] On > Behalf Of Bjorn Schultheiss > Sent: Thursday, 2 July 2009 2:34 PM > To: flexcoders@yahoogroups.com<mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Bitmap downsampling > > > > > Hi, > > I'm having a lot of trouble with down-sampling a bitmapData. > > I tried the smoothing option first > > public function produceResizedBitmapData(image:DisplayObject, > transform:Matrix):BitmapData > { > var temp:BitmapData = new BitmapData(image.width, image.height, true, > 0x00FFFFFF); > temp.draw(image); > > var clone:BitmapData = new BitmapData(image.width*transform.a, > image.height*transform.d, true, 0x00FFFFFF); > clone.draw(temp, transform, null, null, null, true); > > temp.dispose(); > return clone; > } > > except the quality was poor, once the image was of a certain size. > For example scaling a 2500px image down to 200px. > > I've tried using clevrLib plus a pixelBender bilinear sampler but no go. > I've noticed it works in picnik so it must be possible. > > Can anyone push me in the right direction. >
