On Thu 28-May-2009 at 07:52 -0700, Tom Sharpless wrote: > >So align_image_stack does use local correlations, then generates CP's >as a way of communicating the required alignment to other tools?
It generates control points because it uses the hugin optimiser to do the alignment (which is also why it accepts projection and field of view parameters). >Is this done in such a way as to allow some warping as well as simple >shifting in the final alignment step? The alignment uses the usual roll, pitch, yaw and fov distortion. >That is, are the CP's based only or mainly on local shifts? No idea, the image is divided up into a grid and a feature detector tries to place an even distribution of points over the image area. In practice, with the -p option it behaves like a control point generator that only works with stacked photos, but which produces very few 'bad' points and which works very well with large exposure differences. -- Bruno --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
