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HDR and tone mapping

HDR stands for High Dynamic Range. It is a technique to reproduce a greater dynamic range of luminosity than possible using standard digital imaging techniques. High dynamic range (HDR) images enable photographers to record a greater range of tonal detail than a camera are able to capture in a single photo.
To make a HDR picture You need 2 or more photos with different exposures of a high contrast motive. All tones should be represented in the photos, a photo where the light tones are not burned out and a photo where there are details in the darkest areas. How many photos are nessesary, depends of the contrast in the motive.
The different tones from the varios photos are compressed into a single picture with normal Dynamic Range.


HDR photos can be created via HDR software such as Photomatic Pro or Photoshop. HDR photos can also be created manually in Photoshop.

Example: 3 photos of a church with different shuttertime. The photos are edited in Photoshops Raw Converter and saved as TIFF files.

The photos are compresset in Photoshop CC. File/Automate/Merge to HDR Pro with default settings.

The HDR photo are tone mapped manually in photoshop via luminosity masks.

This HDR photo are created with the options in Photoshops Merge to HDR Pro.

HDR photos tone mapped with luminosity masks manually, looks more naturally than most HDR photos tone mapped in HDR software.

 
Luminosity masks are basicly selection tools created in the Channels palette in Photoshop.

See more about Cannels.



 

 

 

 

About, Bird photography, Landscape and Seascape, Macro and extreme macro photography, Surreal trick photography