bob100684
Member
- Joined
- May 8, 2006
- Messages
- 510
- Format
- 35mm
Playing with HDR imaging in the digital world made me curious about how the process works beyond dragging sliders for "tone mapping" properties and seeing what happens, a quick trip to wikipedia yielded:
http://en.wikipedia.org/wiki/High_dynamic_range_imaging
anyway the gist of it is there are mathmatical equations that I don't understand going on behind the scenes, but how is tone mapping done with film?
Wikipedia says it has been done on some relatively well known photos
http://en.wikipedia.org/wiki/High_dynamic_range_imaging
anyway the gist of it is there are mathmatical equations that I don't understand going on behind the scenes, but how is tone mapping done with film?
Wikipedia says it has been done on some relatively well known photos
but I'd like to know how not just that it has been done. Anyone?High dynamic range imaging was originally developed in the 1930s and 1940s by Charles Wyckoff. Wyckoff's detailed pictures of nuclear explosions appeared on the cover of Life magazine in the mid 1940s. Wyckoff implemented local neighborhood tone remapping to combine differently exposed film layers into one single image of greater dynamic range.