Gerry JJ wrote:
> On Fri, 23 Feb 2007 19:55:41 +0100, Sudheer Satyanarayana  
> <[EMAIL PROTECTED]> wrote:
>   
>> Can anybody tell me how to remove those white patches and make the image
>> neat?
>>     
>
> Sure.  Do this (some names may differ, my gimp is norwegian so I have to  
> translate some things):
>
> 1. Load the image into the gimp. Select the color picker tool, or  
> pen/pencil with ctrl held, and use this to catch the purplish color.
> 2. Convert the image from indexed to RGB format (Image -> Mode -> RGB).
> 3. Go to Colors -> Levels, click the third color picker button from the  
> right at the bottom ("select black point"), click the purplish color. The  
> logo should now be black. Hit ok.
> 4. In the layers window, right-click the layer and add a layer mask.  
> Select grey scale copy of layer in the dialog and make sure "invert mask"  
> is checked. Click add.
> 5. Click the leftmost of the two images of the layer in the layer window  
> to select the image (the other is the mask). Also check the little  
> checkbox above the layers view, to lock transparency.
> 6. Switch to the bucket fill tool. In the tool options, select "fill  
> entire selection". Click the image to fill it with purplish. White patches  
> are now gone! (But we're not quite finished yet..)
> 7. Right-click the layer again and select apply layer mask.
>
> You now have an image with alpha transparency. To use the alpha  
> transparency as is on the web, you'll have to save the image in the png  
> format, but note that (older?) IE browsers doesn't support alpha  
> transparency properly. Gif only supports on/off transparency. To get nice  
> anti-aliasing with that, you'll have to add a background to your logo (add  
> a new layer filled with your new background color, put it below the logo,  
> and flatten the image).
>
> Good luck!
>
> ~ Gerry
>
>   
This method looked very interesting to me (as a useful method for some 
of my own projects), but I couldn't get it to work...  I tried many 
times...  I am using a dev. version of GIMP (2.3.12) in case that makes 
a difference

Ben

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