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47208Re: [PanoToolsNG] Re: Best settings for autopano to connect all images?

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  • Manfred Kröger
    Jan 3, 2011
      Hi Jeffrey,

      yes, I still use this outdated software because the results are better.
      At least for the images I tend to shoot (outdoors, large mosaics, quite
      long and focal length when compared with all the fish eye lenses lots of
      people here use).

      Actually I do use PTGui. It's definitely good to align the images for a
      first time. It's really fast! Then I get the links to the overlapping
      image pairs. At that point, if there are overlapping images without CPs,
      it's the best idea to let autopano find CPs, with a "size" parameter
      value set to 1500 or 2500. That may help a bit but far too often that is
      where my (tedious mouse clicking) nightmare begins. :-(

      I have to click on the link to "1 and 2" and "2 and 3"... and try
      PTGui... CTRL-SHIFT-G ... For some of the overlapping image pairs it can
      find control points but if it does not find any I have to run autopano
      on those two current images: click on "control points" menu ... click on
      "autopano image 1 and 2" menu entry ... and ... wait ... because ...
      with ... a ... size ... parameter ... value ... of ... 2500 ... or ...
      5000 ... this ... will ... take ... a ... while. :-(

      I also use a macro recorder which can simulate the clicking and mouse
      movements while I sleep.

      But that can't be it! This can't be the state-of-the-art workflow nowadays.

      I know I have to set the control points by myself, but I don't want to
      do this for that many overlapping images. Actually, why should I do
      this? The software *can* find (most of) the control points when *it is
      used in a special way*. So, the software *should* be able to help me.

      PTGui does not support this workflow at all (no configurable CP
      generator, no automatic function to do this for all unlinked image pairs
      although all the information it needs are available to it) and I can't
      find the right settings for autopano which, by looking at the
      documentation, should do exactly what I want to do: Build a list of
      "interesting" points for all images and try to see for *all* image pairs
      if they are linked.


      On 03.01.2011 13:19, prague wrote:
      > hi,
      > you are using the autopano plugin inside ptgui to create control points?
      > not sure why you'd want to do that. it's about 4 years old - quite
      > slow and out of date by now. the ptgui control point generator is much
      > (10x ?) faster and otherwise better.
      > you can also try the autopano pro software, which sometimes does a
      > better job guessing the unknown positions of images.
      > if your images "Not all of them have many details" as you say, then
      > you might need to make manual control points yourself - in that case
      > ptgui is easier to use IMO.
      > Jeffrey
      > --- In PanoToolsNG@yahoogroups.com
      > <mailto:PanoToolsNG%40yahoogroups.com>, Manfred Kr�ger
      > <Manfred_Kroeger@...> wrote:
      > >
      > > Hi!
      > >
      > > I'm trying to find the best settings for autopano but it's not that
      > > easy. I recently took a lot of pictures with different exposures to
      > > create HDR images. Not all of them have many details and PTGui and
      > > autopano quite often fail to find control points but since I don't
      > use a
      > > tripod I found out that I get the best results if all overlapping
      > images
      > > are linked by control points.
      > >
      > > Unfortunately PTGui does not support the user in creating that many
      > > control points. It can show me which pictures are overlapping and are
      > > not linked by control points. Ok, that's a first step but then I
      > have to
      > > click on the link to the two images and afterwards I have to click on
      > > "Generate control points for images 1 and 2". That's not what I call
      > the
      > > optimum workflow... PTGui knows which images are linked so it could run
      > > autopano on all those image pairs. But that would mean that autopano
      > > would have to find control points for the images multiple times (1 and
      > > 2, 1 and 3, 2 and 3, 2 and 4, ...) which also is not the best way since
      > > it would take a long time.
      > >
      > > I would like to run autopano only once.
      > >
      > > I found out that autopano has can search for control points for all
      > > image pairs but I have not found out how to get this to work. There are
      > > too many other settings that have to be set.
      > >
      > > Currently I use these settings:
      > >
      > > /keys:4 /size:2500 /ransac_dist:40 /ransac_iter:2500000 /search:1
      > > /validation:3
      > >
      > > I don't know where I found them but they work quite good for my
      > pictures
      > > (Nikon D90).
      > >
      > >
      > > I know I have to change the search algorithm to 3. Has somebody tried
      > > this algorithm and found values for all the other settings that
      > really work?
      > >
      > >
      > > Best regards,
      > > Manfred
      > >

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