Modifying contrasts on a photograph allows for greater distinction between light and dark areas, and therefore colors become also easier to differentiate from each other. In the following examples, the light and dark areas were first slightly enhanced using new adjustment layers and either the screen blending mode –to lighten up areas that are too dark– or the multiply blending mode –to darken areas that look washed out–, then modifying the opacity to enhance the areas to be corrected. As this method is a global correction, the entire picture gets modified by the chosen opacity and blending mode.

Then, using curves to create different patterns of modifications, the shape of each curve determines which areas are further modified when compared with another area of the same picture.

First: The original photograph, a fishing boat near the shore, Koh Chang, Thailand (2008)

Fishing Boat, Thailand 2008

Fishing Boat, Thailand 2008

Next, using a series of curves, each modifying the original in its own way:

curve-graph-1-1

 

Koh-Chang Fishing Boat

Koh-Chang Fishing Boat

 

 

 

curve-graph-1-2

curve-graph-1-2

 

curve-contrast-1-2

curve-contrast-1-2

 

 

curve-graph-1-3

curve-graph-1-3

 

curve-contrast-1-3

curve-contrast-1-3

 

 

curve-graph-1-4

curve-graph-1-4

curve-contrast-1-4

curve-contrast-1-4

 

 

 

curve-graph-1-5

curve-graph-1-5

 

curve-contrast-1-5

curve-contrast-1-5

 

 

curve-graph-1-6

curve-graph-1-6

 

curve-contrast-1-6

curve-contrast-1-6

 

 

curve-graph-1-7

curve-graph-1-7

curve-contrast-1-7

    

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s