Canvas.StretchDraw and AntialiasingMode
lazarus / 39-Graphics

----------------------------------------------------------------------
VTwin · 2011-03-29 13:54

The Canvas.StretchDraw method works fine for resizing, but the image
quality can be poor when shrinking an image.

Is AntialiasingMode supposed to help? It does not seem to do anything
in Carbon. Any suggestions on ways to get a better image?

ImageMagick may be overkill, and it doesn't seem to be quite OS X
ready.

Any comments appreciated.

Cheers,
Frederick

OS X 10.6.6

----------------------------------------------------------------------
PAEz · 2011-03-30 11:58

Try using something like http://imaginglib.sourceforge.net/ or
http://wiki.lazarus.freepascal.org/BGRABitmap.

----------------------------------------------------------------------
gyts · 2011-03-30 13:41

Quote from: PAEz on March 30, 2011, 01:58:00
pmhttp://wiki.lazarus.freepascal.org/BGRABitmap.

How to install BGRABitmap? Do I need bgrabitmap folder put into
Lazarus\components?

----------------------------------------------------------------------
PAEz · 2011-03-30 14:30

Have a look at the tutorial, thats covered on the first page...
http://wiki.lazarus.freepascal.org/BGRABitmap_tutorial
..and for me the directory for bgra is in the same directory as the
source for the app.

----------------------------------------------------------------------
circular · 2011-03-30 20:14

I've updated BGRABitmap, it should now also work as an installed
package. It still works of course when simply added to the search
path.

----------------------------------------------------------------------
VTwin · 2011-03-31 12:16

Excellent. I will give this a try.

It looks really great circular!

Thank you,
Frederick

----------------------------------------------------------------------
circular · 2011-03-31 16:50

You're welcome.