Digital Outback Photo
- Photography using Digital SLRs

 

Workflow Technique #018

"Improving Saturation and Contrast"

article by Uwe Steinmueller

 

 
 

As all photographers know there is rarely something like the "right light". Especially for our recent work called "Earth Frames" there are the following choices:

  • Mid-Day sunlight with harsh shadows and burned out highlights
  • Evening sun with better light but long shadows
  • Overcast with flat light

From these alternatives we favor the "overcast". Best would be a very light overcast so that the light is like an optimal light box.

 


Flat image to start with

 

We will most likely get some flat images right from the raw converter. Yes, we could tweak it in the raw converter but prefer to do this work with layers in Photoshop That way we can revisit all our changes and improve them later.

The first step is most often an adjustment layer using "Levels"


Levels Adjustment Layer

As you can see we did not move the white point that much as the photo would get too bright and also does not contain real white details.


After Levels

Now we increase the contrast using some S-Curve in a Curves adjustment layer.


S-Curve


After Curves

S-Curves tend to create a slight color shift that can be removed by changing the blending mode of the layer to "Luminosity" (the change is subtle and best you try everything yourself).

    
Changing blending mode to luminosity


After change to "Luminosity"

There is still the desire to increase saturation and micro contrast. There are many ways to go. We want to explore a technique outlined to us by Katrin Eismann (author of "Photoshop Restoration & Retouching").

Using an adjustment layer with "Hard Light" blending mode

Create a new Curves adjustment layer and change blending mode to "Hard Light".


100% "Hard Light"

Kind of obvious that this is not what we want, right? Don't worry, the right selection of the layer opacity allows us to tone the effect down to a more pleasing level.


Changing the Opacity


Hard Light at 27%

There can be a problem using this technique, the shadows might get to dense. As we use a Curves adjustment layer we could use curves to control the impact on the shadows. But there is a more elegant solution. Open the layer's blending options and move the left slider for the "Underlying Layer" to the right. Now below 46 the values are not effected anymore.


Setting the "Blending Options"

This is still not what we want as the transition would be visible. But there is more. If you look carefully you see that the tiny triangle sliders are split. You can separate them by using the ALT key and moving the right part of of the triangle to the right. Voilà:


Split sliders

Now all shadows below 52 are protected from our "Hard Light" layer, then there is a smooth transition zone up to 85 and finally the layer effect is fully visible above 85.

Variation with "Soft Light"

You can do the same using the "Soft Light" blending mode. This time the effect is less dramatic.


Soft Light at 100%


Soft Light at 27%

Be careful that your photos don't get too punchy. Also photos directly contrasted with strong saturation photos look even flatter than they are. This is one reason that natural saturated photos are received as flat because we are bombarded with to many over saturated photos today (the heavy metal of photography).

 
 
 
 
 
 

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