Each image is 256 by 256 pixels, has exactly 256 unique colours and has a smooth vertical transition from one colour to another.
I don't really know if anyone else needs such images, but anyhow, here they are.
If you need them, then do whatever you like with them.
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| Black White |
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| Black Red | Black Green | Black Blue |
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| Red White | Green White | Blue White |
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| Red Cyan | Green Magenta | Blue Yellow |
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| Black Cyan | Black Magenta | Black Yellow |
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| Cyan White | Magenta White | Yellow White |
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| Red Green | Green Blue | Blue Red |
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| Cyan Magenta | Magenta Yellow | Yellow Cyan |
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| Red Yellow | Green Cyan | Blue Magenta |
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| Yellow Green | Cyan Blue | Magenta Red |
I made these images with POV-Ray while experimenting with UV-mapping of images onto meshes.
The images are stored in the PING format (PNG).
(In most browsers you can right click on images in order to get a menu from where you can save them.)
If you want the gradients to be turned upside down or to go horizontally, just rotate them in an image editor.
Tor Olav Kristensen
