HDR to SDR Tone mapping,a practical analysis.

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What is HDR?

 




 
High-dynamic-range imaging (HDRI) is a high dynamic range (HDR) technique used in imaging and photography to reproduce a greater dynamic range of luminosity than is possible with standard digital imaging or photographic techniques. The aim is to present a similar range of luminance to that experienced through the human visual system. The human eye, through adaptation of the iris and other methods, adjusts constantly to adapt to a broad range of luminance present in the environment. The brain continuously interprets this information so that a viewer can see in a wide range of light conditions.

or just watch this…

 


The current option’s to reproduce HDR colors in non-HDR env. are:

  • MadVR
  • Hable’s Tone Mapping (passed through pipe to mpv)
  • reinhard Tonemapping Technique (MPV’s Default)
  • Top sekret proprietary methods.(not a option :/)

 

I will show you example’s how above 3 methods try to produce HDR colors to SDR.(Aka. tonemapping)

 

MadVR

 

 

madVR is a high quality DirectShow video renderer.

Designed as a no-compromise approach, madVR tries to achieve the best possible video playback quality.

 

View post on imgur.com


Hable’s Tone Mapping

 

Hable’s tone mapping simply put is a algorithm.while many people conside this as very premature.the results are good.

 

Environment : VS pipe to MPV.

View post on imgur.com

 


Reinhard Tonemapping

 

Environment :MPV.

View post on imgur.com

 

 

 

jagadeesh

I like to solve core problems with simple innovations!

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