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Tone-Mapping HDR Photos with Qtpfsgui

May 25, 2007, 07:30 (0 Talkback[s])
(Other stories by Nathan Willis)

[ Thanks to An Anonymous Reader for this link. ]

"HDR stands for high dynamic range, and in reference to this particular look it's a misnomer -- all Flickr photos are standard, low dynamic range JPEGs. Use of the term HDR in this context stems from the fact that the technique generally begins with multiple low dynamic range shots of the same scene taken at different exposures. The shots are stacked together to mimic the effect of an HDR original. The stack of images is then tone-mapped, pulling in shadow detail from the darkest exposure and highlight detail from the brightest. It's that tone-mapping step that gives these images their distinctive appearance..."

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