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DPChallenge Forums >> Tips, Tricks, and Q&A >> How to increase dynamic range in a contrasty image
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 06/16/2007 07:40:43 AM · #1
Originally posted by Delta_6:

How you I do more dynamic range?
(from a private DPL team thread but exposing nothing private ... hehe)

Well if you have Photoshop and know how to do tone mapping (by changing the image mode to 32 bit then back to 8 bit and opening the Toning Curve and Histogram and choosing the Local Adaptation tool) that is one way but very complicated and takes a while to learn to get good results.

Here is a good tutorial for another Photoshop method for improving dynamic range. I use it quite a bit ... //dpchallenge.com/tutorial.php?TUTORIAL_ID=20

Finally, a yet easier method to use the Photoshop Image/Adjustments/Shadow/Highlight tool to play with your dynamic range.

:)
 06/16/2007 11:08:57 AM · #2
You can use contrast masking too. Bear_Music introduced this to me and it works well.

Duplicate your layer.
Desaturate and inverse the duplicate layer.
Put the duplicate layer in softlight or overlay mode and adjust opacity to taste.
Do a tiny bit of Gaussian blur to that layer to clean up the edges.

Hopefully Robert will come clean up anything I missed, forgot to mention and/or messed up.

Message edited by author 2007-06-16 11:12:18.
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