On Mar 6, 2006, at 12:55 AM, Seth Willits wrote:
Easy trick : design your image at double size, then drawpicture it
with appropriate scaling, this will antialias it somewhat...
That'll make everything blurry which generally isn't what you're
after. You just need to create the image properly in the first
place and everything will be honki dori.
FFL was suggesting to design the icon at double size (256x256). That
is a good trick assuming the interpolation algorithm is half-way
decent (and Quartz is pretty good in this regard). You can even
write your own by averaging 4 pixels (colors and mask) into a single
pixel in the target image.
Another option is that you can also up-sample (enlarge) a picture and
then down-sample to make it more anti-aliased. Seth, I think that is
what you though FFL was suggesting, and you are right that this would
effectively blur the image a little bit... but in some cases it would
look a little better than the original.
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