When the image was equalized though, some pixelization formed around the clouds. The only way I could remedy this was to lower the opacity of the equalized layer and then an image resize from 3872 x 2592 to 640 x 429.
I need to play with this effect a bit more.
|Buffalo NY 2014. Interesting effect using multiple layers in Gimp with the equalize function and playing around with the opacity of the top layer.|