T. Modes wrote: >> Why does hugin deal with absolute values of exposures of images? >> >> Can we bring in all of the images with an exposure of zero and then just >> apply exposure compensation instead? >> > > When using LDR output (enblend, enfuse) relativ or absolute exposure > should make no big differences. But when output HDR images you get a > other output with an ev values of e.g. 13 than with ev 0. But I don't > know which output is preferred.
The idea was that: 1. A relative exposure compensation cannot be read from the exif data. Of course this only applies when hugin does read the images correctly. 2. If a "true" hdr needs to be generated, the exposure values of the camera should be used (unless they are not accurate), because there is an ambiguity when estimating exposure and response curve at the same time. 3. It becomes possible to directly combine HDR's produced by hugin from the same camera, regardless of the source exposure, as they are all in some absolute space. If camera manifactures would use the same definition for ISO, this would even work across cameras, but probably today it doesn't. ciao Pablo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
