skip "align" button in assistant?

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Csaba Tóth

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Apr 5, 2021, 5:04:28 AM4/5/21
to hugin and other free panoramic software
Hello!
My problems are: 
I have a large (100+) photo set for cylindrical projection. (for the whole rendering take 12+ hour)
  1. If I use the align button, it will always create new contol points. An because the image contains many block house always create point between wrong pairs. If I fix this, I cant preview it, because it say "need to align again". If I do, it will mess up again (and I need to check every 100+ image to searching the wrong pairs, It will be better to display a matrix, every cell how many cp for that pair)
  2. there are "stacks" in the result: many images in the same place, same orientation, and I dont know why, and how handle it.
  3. If I start with few images and add more, (and "align" it to see the result) I get error: there are two not linked group [0],[1-9] If i fix it, add new one, get more not linked groups: [0],[1],[2-10], and begin mess up (start rotate the first image)
How can I "align" the images to see the result without the "align" button, or without the messing up? 

what I want to do:
  1. load every image, "align" it to see where need to fix.
  2. fix an error (add/remove cp-s, try to rotate, add horizontal lines etc)
  3. preview the result, if there is error: -> 2
  4. straigthen
  5. define the crop
  6. create the panorama
Thanx
Csabastacks.png
(there is two stacks each with 10+ image, the same place, same orientation)

Luís Henrique Camargo Quiroz

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Apr 5, 2021, 10:48:09 AM4/5/21
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    Hi Csaba!

   Just an idea:  maybe you are using the "simple" interface, and this creates or tries to create new CP pairs before new alignment of (new) images? I am not sure, because I don't use this interface; I think it is intended for beginners and aiming to create a panorama "at once" from a given set of photos. And of course in your case you are feeding and growing an initial set of photos  (your # 3) , and starting a recipe meant to be run just once when you press align (#1) and this starts with "create CPs".

    I advise you to try at least the advanced interface.  In this case you will "align" only when you optimize the panorama parameters, and this process does not create new CPs. You will have to create the CPs beforehand, and you can improve or create yourself new CPs when desidered -- and they will take effect after a subsequent optimization.  A rule of thumb is optimization of 'positions only', and when the result seemed OK (or almost), then you could include 'positions and visualization', etc.  For a correct 'visualization' optimization the panorama must be a complete turn around, and this is the case with your cylindricals.

   As for the stacks, I think some photos could have an excessive superposition and/or the same kind of image content and this could fool Hugin.

  Try please the advanced interface and tell us your progress.  Goof luck!

  regards,

  Luis Henrique

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Gunter Königsmann

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Apr 6, 2021, 1:57:27 AM4/6/21
to hugi...@googlegroups.com, Luís Henrique Camargo Quiroz
A good strategy might be first adding a few (4 per image pair) control points that tell hugin which window is which, then aligning preliminarily and telling hugin only then to add its 20 additional control points. One or two of then will be in the wrong place, again. But there is the "clean up control points" option for that.

Kind regards,

Gunter.
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Tóth Csaba

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Apr 6, 2021, 1:35:44 PM4/6/21
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Hello!
Thanx.
The problem the stacking was: the hugin created only 23 stacks, after I change the stack size to 1, the result is much better.

btw, I dont have Optimalize tab. Its greyed out, as the Exposure tab.

thanx again
Csaba

Bruno Postle

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Apr 6, 2021, 4:34:59 PM4/6/21
to Hugin ptx
On Tue 06-Apr-2021 at 19:35 +0200, Tóth Csaba wrote:
>The problem the stacking was: the hugin created only 23 stacks, after
>I change the stack size to 1, the result is much better.
>
>btw, I dont have Optimalize tab. Its greyed out, as the Exposure tab.

The Optimise tab and Exposure tab are enabled when you select
Optimise Custom Parameters in the Photos tab.

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Bruno
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