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Even a colorful image from your point 'n shoot camera can be enhanced to increase the "wow" factor.

If using Photoshop, adjust the image using the Shadow/Highlights tool. This is optional, go easy.
Then adjust your image for Levels and Curves in separate adjustment layers. Flatten.
Now, copy the Background layer, then boost Hue/Sat up to +25 (saturation setting only, use the menu tool for this, NOT a Hue/Sat adjustment layer),
then apply the Median filter at 6 pixels, followed by Gaussian Blur at 4 pixels.
Change blend mode on this layer to color, and reduce opacity to 80% or to your liking.

Run Paint With Light action http://www.atncentral.com).
Finish the image by painting light and dark (dodge and burn) where you think it's needed.
See the Next image on how to use the Paint With Light action.