Hi All, Will working on a fix for 2805120 <https://sourceforge.net/tracker/?func=detail&aid=2805120&group_id=77506&atid=550441>(https://sourceforge.net/tracker/?func=detail&aid=2805120&group_id=77506&atid=550441)<https://sourceforge.net/tracker/?func=detail&aid=2805120&group_id=77506&atid=550441>I came across something that I would like some clarification on.
When one loads images into Hugin, it will attempt to compute an exposure value. This only works if EXIF data in available in the image. If not, the exposure value will default to 1. Except if another image is already loaded in the panorama. If that is the case, and it is the same size (and if the same make and model and focal length), then the exposure value from that image is copied to this one. To me, this seems like madness. I can understand what one may be wanting to acomplish with but...that small voice inside of me is saying "danger, Will Robinson, danger!" The fun really starts when one loads an image without EXIF data and then later adds another with EXIF data. The first image comes, asks for an HFOV and assumes an Ev of 1. Ok, I can go along with that, gotta pick something right? Now, add the second image (with EXIF data). Hey...It comes in with an Ev of 1 too...Nice....:-( Since the second image is of the same dimension as the first, Hugin also assumes you are using the same lens and sets this image to the same HFOV that was guessed for the earlier image. But this second image actually has EXIF data and one can obtain the the true HFOV. So hit the load EXIF button. Boom! Now the exposure value of the second image is 13 stops higher than that of the first (in my test images). But the HFOV is good..... You just have an image so bright in the preview that one might have well pointed the camera at the sun. Now my questons: 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? Regards, - Gerry --~--~---------~--~----~------------~-------~--~----~ 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 hugin-ptx@googlegroups.com To unsubscribe from this group, send email to hugin-ptx-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
