Open source auto photo enhancement

[sallyanne]

in GMIC (a gimp plugin) it has a preview for nearly every filter and you can apply the filter without closing it then if you need another you can do the same. Press ok on the last filter you useand everything will go back into gimp. I can usually enhance a photo using just a couple of filters, or three.
Try it out and you will work out the best workflow (and quickest for you)