Stitching an old panoramic school photo from scans

[John James]

Hi.  Does anyone have any experience using hugin to stitch together several (up to 7)jpgs made by scanning an old panoramic school photo, about 4 ft long.  I have tried several ways with big overlaps, small overlaps, cropped files etc but I can only get 2 or 3 to stich together correctly. I have manually set the lens length to 1000mm to make them seem flat. Even after stitching 2 pairs together, I can't stich the results correctly.

[Marius Loots]

Hallo John

Somewhere I have posted the procedure to do microscope images. There is also a tutorial if I remember correctly. Not at a good internet connection at the moment, will have a look when I can. 

One thing I found is that the 2012 version of hugin works a lot better than the later versions. 

Regards

Marius Loots

Sent on the go, apologies for formatting.

On Tue, 21 Jun 2022, 19:27 'John James' via hugin and other free panoramic software, <hugi...@googlegroups.com> wrote:

Hi.  Does anyone have any experience using hugin to stitch together several (up to 7)jpgs made by scanning an old panoramic school photo, about 4 ft long.  I have tried several ways with big overlaps, small overlaps, cropped files etc but I can only get 2 or 3 to stich together correctly. I have manually set the lens length to 1000mm to make them seem flat. Even after stitching 2 pairs together, I can't stich the results correctly.

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[John Fine]

On Tue, Jun 21, 2022 at 1:27 PM 'John James' via hugin and other free panoramic software <hugi...@googlegroups.com> wrote:

I can only get 2 or 3 to stich together correctly.

Some hint of what failure symptoms you had might help.

A tutorial for stitching "mosaic" (rather than the usual "panorama") has been linked to a few times recently, so look back in the recent mailing list history.  (What you need is definitely mosaic not panorama).

You need expert mode to enable the most important feature for mosaic, which is changing which parameters are set by optimize.  A panorama optimizes mainly by adjusting pitch and yaw.  You don't want those adjusted at all.  The main mosaic parameter is "translation X".  Other mosaic projects also need Translation Y and sometimes Z.  But for what you described, you don't need Z and might not need Y (though enabling translation Y won't hurt).

[John James]

I was able to finally get it to work well using manually entered control points in Expert mode.  I found this tutorial https://hugin.sourceforge.io/tutorials/scans/en.shtml that helped a little but it seems that Hugin has moved on a lot since then.  I was not able to find any reference to Mosaic mode in the Expert interface in my version - 2021.0.0.52df0f76c700.  I would write up some notes on what I did but there was so much experimental clicking to get a decent image output that I doubt I could ever reproduce the result again.  Initial attempts did not stitch all 7 images together.

[John Fine]

On Thu, Jun 23, 2022 at 4:36 AM 'John James' via hugin and other free panoramic software <hugi...@googlegroups.com> wrote:

 I was not able to find any reference to Mosaic mode

Sorry if I made things harder by using that term.   I thought I remembered that word being used in previous discussions of this type of stitching.  I did not mean it was in the UI of Hugin itself.  It probably should be in the UI of Hugin.

You found the right tutorial anyway.