2009/5/25 Markku Kolkka <markku.kol...@iki.fi> > > DaveN kirjoitti viestissään (lähetysaika lauantai, 23. toukokuuta > 2009): > > I don't know if this has been asked before (hard question to > > ask in a search) but why don't people fuse their images before > > making panoramas? > > I'm getting highlight banding artifacts when fusing (to 16-bit > TIFF) before making the panorama. See e.g. the top left corner > of http://static.panoramio.com/photos/original/10143416.jpg > > -- > Markku Kolkka > markku.kol...@iki.fi > > >
You mention that you fuse to 16bit tiff. Fusing from what source images, also 16bit tiff or from 8bit tiff or jpg? If you are fusing from jpg or 8bit tiff you might run into the "banding artifact" issue which is described on enblend.sourceforge.net at http://enblend.sourceforge.net/banding.htm. Actually only the conclusion matters: *"In summary, it is a combination of numerical precision errors and limitations of an 8 bit/channel color format that is the cause of the banding artifacts. Rounding errors were responsible for the shape of the bands, but this was just hiding the underlying issue that 256 levels of green is not enough for quality digital imaging."* Harry --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
