GIMP How? The S. John Ross Woodcut technique

[RobA]

Oh Ha!

Simple. This is the way I do it.

Start with black land on white sea:


Duplicate this, and select by colour the black, then grow the selection by 1/2 the amount you want your fade to be (I used 30 pixels here), then fill with black.


Go back to the original layer and select by colour the black again. Then invert the selection. Now Gaussian blur twice the pixel size you grew the selection:


Invert the selection again and fill with white Though this is purely optional if you are most likely to have a land layer above:


Now select None, and use levels and adjust the gamma (middle slider) or use curves and drag it up an down until you get the fade out you want:


That's it!

-Rob A>