Carey; On Mon, Oct 09, 2000 at 02:12:09PM -0400, Carey Bunks wrote: > >> I maintain my own web site, Resonator Software. While writing a HTML > >> page, I wanted to use my black background logo as a background for this > >> page, but I wanted a white version. The logo is here: > >> > >> http://www.ResonatorSoft.com/colorwave.jpg > > Brendan, > > I think I've achieved what you want with a simpler, and hopefully > cleaner result. You be the judge. > > Here are the steps I took: > > 1) Open colorwave.jpg. > 2) Open the Layers and Channels dialog by typing C-l in the image window. > 3) Create a new layer above the colorwave logo. Make the new layer white. > 4) Set the blending mode of the new layer to "Difference". > 5) Flatten the image by right clicking in the Layers and Channels dialog > box. > 6) Open <Image>/Image/Colors/Hue-Saturation and position the Hue slider > to 180 (with the Master radio button selected). Ooh, good thinking - but difference-with-white-layer is equivalent to "Invert" so we can condense steps 2-5 getting: Open image <Image>/Image/Colors/Invert <Image>/Colors/Hue-Saturation Hue => 180 The results of the two procedures is pixel-for-pixel identical, so someone must be doing something right somewhere in the GIMP. Cheers, Tom -- -- Tom Rathborne tomr@xxxxxxxxxxxx http://www.aceldama.com/~tomr/ -- "It's Like A Warzone, Deep Inside Of Me / When My Mind Becomes My Enemy" -- -- Praga Khan, "My Mind Is My Enemy"
