• Subscribe

    Subscribe to This Week In Panospace by eMail.
    Subscribe in a reader
  • License

    Creative Commons License
    This work is © 2008-2012
    by Yuval Levy
    and licensed under a
    Creative Commons License.
  • Entries

    September 2009
    M T W T F S S
    « Aug   Oct »
     123456
    78910111213
    14151617181920
    21222324252627
    282930  
  • Archives

Auto-Exposure


The general recommendation (which still stands) is to keep exposure and white balance fixed across shots when shooting for a panorama. This is not always possible, e.g. with cell phone cameras. Hugin had photometric adjustments and other functionality to deal with exposure and white balance variations for a while. Now in the upcoming 2009.2.0 release this is all accessible through a single tick on the Stitcher tab: Blended and fused panorama.

blended_n_fused

Bruno Postle has published a tutorial about stitching auto-exposed panoramas.

9 Responses

  1. Not quite, the blended and fused panorama mode actually turns off photometric exposure correction.

    The main use of this mode is to do create blended exposure layers, then fuse them with enfuse – I think this is your preferred technique.

    i.e. this mode is for people who currently create separate panoramas for each EV and then fuse them manually with enfuse.

    The ability to stitch some ‘impossible’ auto-exposed panoramas is an incidental by-product since enfuse doesn’t need 100% overlap to do a good job

  2. Really nice tutorial. I’m looking for a tutorial about how to make a fused image with enfuse from 3 images of the same scene. Not a panorama, but more as a HDR of one scene, 3 images with different exposure.

    please help, john.

  3. @john this is a fairly normal hugin usage: load your three bracketed images, set control points and optimise. When you stitch in the Stitcher tab select Exposure Blending -> Blended panorama (enfuse).

    Though all this should Just Work if you use only the assistant tab and follow the 1, 2, 3 steps.

  4. A question: in Hugin 0.8.0, I can’t find how to output a multilayer TIFF image with all the component images remapped on one layer each. Am I missing something?

  5. @NM hugin hasn’t created multilayer TIFF files since 0.6.1. We would like to reintroduce this, but it hasn’t happened yet.

  6. @Bruno: is there a workaround? Another format I can use?

  7. @niczar: This entry in the Hugin FAQ might help

  8. Yes, please add an option for multilayer output,
    not only for exposure corrected layers, but for layers
    where each layer contains the remapped source photo.

    I really need it for correcting parallax errors etc. in GIMP.

    I think given the already existing option to output multiple exposed layers, it would not be hard to add?

  9. @paulus: What you are looking for is the “remapped images” checkbox on the Stitcher tab. Check that one and you will have one TIFF for each remapped source photo.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s