On 05/27/2010 03:03 PM, Branko Vukelic wrote:
> On Thu, May 27, 2010 at 10:38 PM, Tom Williams <tomd...@comcast.net> wrote:
>> Can't doing this result in some loss of image quality?  Sometimes I'll
>> make PNGs with a drop shadow and transparency and when I convert the
>> image to indexed mode, the drop shadow quality suffers.
> There are ways to do this correctly and keep the image visually
> similar to the original 24-bit PNG (the one with alpha).
> You must know the color of the background on which you'll be putting
> the 8-bit PNG (binary transparency) before you can do so, though. Once
> you know the background color:
> 1. Create a layer filled with background color
> 2. Put the layer behind the image with drop shadow
> 3. Flatten the image and add alpha to the only remaining layer
> 4. Use select by color tool and click somewhere where background shows though
> 5. Clear the selection (delete it)
> 6. Now save the result as 8-bit PNG and it should work
> (Of course, it'll be clearer when you actually do these steps.)

Thanks for the info!  :)


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