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Low-contrast effect

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  #11  
Old 05-27-2011, 08:28 AM
lucija lucija is offline
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Re: Low-contrast effect

http://www.flickr.com/photos/3961776...in/photostream
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  #12  
Old 05-27-2011, 12:14 PM
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diva42 diva42 is offline
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Re: Low-contrast effect

Thanks lucija great effect!
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  #13  
Old 05-27-2011, 01:01 PM
Sergy Manko Sergy Manko is offline
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Re: Low-contrast effect

Effct of the first photo can be done with this curve.

http://www.retouchpro.com/forums/mem...3008-curve.jpg

P.S. My first post btw

Last edited by Sergy Manko; 05-27-2011 at 02:21 PM.
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  #14  
Old 05-27-2011, 11:50 PM
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diva42 diva42 is offline
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Re: Low-contrast effect

I get a blank page Sergy
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  #15  
Old 05-28-2011, 06:11 AM
Sergy Manko Sergy Manko is offline
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Re: Low-contrast effect

Oh sorry. Fixed.
Attached Images
File Type: jpg Curve.jpg (83.5 KB, 89 views)
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  #16  
Old 05-28-2011, 03:30 PM
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diva42 diva42 is offline
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Re: Low-contrast effect

Thank You Sergy so many different ways to achieve desired effect its good to have a variety of approaches as images vary I really appreciate the help as I'm just starting to slowly learn.
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  #17  
Old 05-28-2011, 10:41 PM
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John Wheeler John Wheeler is offline
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Re: Low-contrast effect

If you have the luxury of having a before and after image and just need to know the transformation that gets you from one to the other, then, there is a diagnostic technique that can get you very close without much difficulty.

1) Bottom Layer is Original Image
2) Next Layer use either Curves, Levels, or your desired Adjustment Layer you want to try (I used Levels)
3) Next Layer up is the Target Image set to Difference Blend
4) One more layer above that set to solid gray at about R=G=B=220; Set Blend Mode to Color Dodge; All this layer does is a linear amplification of the difference result of the layer below. The lighter the solid gray the greater the amplification
5) Set Channels to view Red Channel only
6) Set Levels Adjustment Layer to the Red Channel
7) Slide Output Levels first to get the darkest resulting image for the Red Channel
9) If needed, adjust the Gamma slider next (middle Levels slider)
10)Adjust black and white point sliders if needed ( It was not needed on this image)
11) Iterate on 7-10 if needed
12) Repeat 5-11 for Green and Blue Channels
13) The Adjustment Layer will now be set to achieve a very close match from Adjusted Layer to Targeted Layer

In one minute I created a single Levels Adjustment Layer setting that had 97% of the pixels within 1% of the ideal final image colors. Of course this only works if you have the before and after image to work from.

Here were the final settings for each of the Levels Adjustment:
Color.....Blk Output.....White Output.....Blk Pnt.....Gamma.....White Pnt
Red..........117................247.................0...........1.04...........255
Green.........63................252.................0...........1.00...........255
Blue..........102................244.................0.............96...........255

This took much longer to explain than to actual do. Here are the three images for comparison:

Starting Image

Levels Adjusted on Left - Target Image on Right

If my explanation was not clear, just poke me and I will clarify.
Hope this is useful.
John
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  #18  
Old 05-28-2011, 10:48 PM
Sergy Manko Sergy Manko is offline
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Re: Low-contrast effect

Thats a lot of work for somthing that can be achieved just with one curve adjustment layer... but a really great method anyway.
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  #19  
Old 05-28-2011, 11:01 PM
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John Wheeler John Wheeler is offline
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Re: Low-contrast effect

Sorry if my explanation was not clear. It is just a method to determine the optimum values to use to achieve a transformation from a Starting Image to a Target Image using a single adjustment layer (Levels, Curves, or otherwise).

In my example it was a single Levels Adjustment Layer (not multiple) and took less than a minute to make the adjustments to achieve a pretty good match. You basically twiddle the sliders until the image goes black and you are done.

Hope that clarifies.

In fact, I did the same optimization using a single Curves Adjustment Layer in less than 60 seconds. Very similar to what you came up with with some differences in the highlights and the Green curve I used was lower than your blue Curve. Just another technique. Again, only good if you have a before and after image to work with. Does not help otherwise.

Optimizing using Curves Adj Layer instead of Levels Adj Layer

Last edited by John Wheeler; 05-28-2011 at 11:25 PM.
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  #20  
Old 05-29-2011, 02:11 AM
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diva42 diva42 is offline
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Re: Low-contrast effect

@John When you say target image what exactly is that the original placed above the curves/levels layer? Sorry I'm a bit lost I am assuming when you use either curves or levels its to get as close to the original color as you can without the source image am I right? If so I used the curves auto adjust and see the color difference between mine and yours mine having more green to it. As for the rest of the steps well I know some about photoshop but not enough I am a eager learner I don't quite follow how to achieve grey rgb 220 I tried filling a layer with 50% grey but I don't think thats what you meant. As for the channels I will have to study further I know how to get there but adding adj layer Im not to sure of.

Thanks for your help in advance
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