Re: How to create a palleted full color PNG( PNG32)

On Thu, 27 Nov 2008, Nguyen Vu Hung wrote:

1. How to make a full color PNG with 4 bits in each channels like google
does?

I expect that setting the Image 'matte' attribute to 'true' will help.

2. Why in my code, despite of that I have specified image.magick("PNG32");
     The final output png32-test.png is a PNG 24 bit and I don't see alpha
channel on it?

This seems like a small bug.  Unfortunately, in order to add the 
missing matte channel, it would be necessary to modify the image being 
saved.  That means your Image is no longer the same as when you saved 
it.  This does happen in other cases too, but it is best avoided.

Bob
======================================
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/


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