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Graphics > GIMP (GNU Image Manipulation Program) > Re: backgrounds...
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Re: backgrounds on png pix

by "David A. Redick" <tinyweldingtorch@[EMAIL PROTECTED] > Jun 16, 2008 at 11:58 AM

Check the alpha channel for those odd PNGs.
JPEG doesn't sup****t alpha so when those images were converted it
probably defaulted to 0xff (full alpha or full opacity).

In Paint.Net (probably Gimp too) just select the area you want
transparent and hit delete.
It should become a gray and white checker board pattern (de facto for
invisible stuff)

Futher reading:

http://en.wikipedia.org/wiki/RGBA_color_space
http://en.wikipedia.org/wiki/Alpha_compositing
 




 8 Posts in Topic:
backgrounds on png pix
Albretch Mueller <lbrt  2008-06-14 09:00:57 
Re: backgrounds on png pix
Joshua Cranmer <Pidgeo  2008-06-14 13:32:30 
Re: backgrounds on png pix
Andrew Thompson <andre  2008-06-14 06:54:18 
Re: backgrounds on png pix
Ricky Rudolph <a@[EMAI  2008-06-14 14:09:18 
Re: backgrounds on png pix
Ricky Rudolph <a@[EMAI  2008-06-14 14:06:43 
Re: backgrounds on png pix
Donkey Hot <spam@[EMAI  2008-06-14 14:24:00 
Re: backgrounds on png pix
Roedy Green <see_websi  2008-06-16 11:43:11 
Re: backgrounds on png pix
"David A. Redick&quo  2008-06-16 11:58:52 

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tan12V112 Thu Dec 4 17:12:17 CST 2008.