GIMP Version: 2.6.11
Operating System: Linux
OS Version: XP - SP3
GIMP Experience: Intermediate Level

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Esper I have created a text effect on a transparent back ground which I have blurred to smooth out the colours and was wondering what is the best curve shape to use to sharpen the alpha channel.

Use a S shape, or just use Brightness/Contrast to add contrast to the Layer mask:

Left to right: original, gaussian blur 20px, blurred disk with contrast applied to layer mask:

ofnuts stole my cyberbody

Thanks, just a quick query though when you mention use Brightness/contrast to add contrast to the layer mask to you mean to the layer as I am not using a mask or do I need to create a layer mask. Also could you possible post a picture of what the S shape curve should look like. Cheers.

we used alpha curves in this tutorial, for sharpening blurred text

viewtopic.php?f=23&t=5808

does this help ?

Thanks.