Stitching streets

[Thomy Kern]

Please see the pictures and you will see the problem. Solutions?

[Erik Krause]

Am 24.07.26 um 13:04 schrieb Thomy Kern:

> Please see the pictures and you will see the problem. Solutions?

This is most likely caused by drone drift which in turn causes parallax.
Try to keep the drone in one place as good as possible.

For the particular panorama, go to Control Points tab and set control
points in the affected image pairs on structures at street level and
delete all other control points, especially those which are away from
the street or at a different level (above or below).

If this doesn't help, please upload the project including the images
(downsized jpegs would do) to a file sharing site like wetransfer or
dropbox and post the link here.

--
Erik Krause
http://www.erik-krause.de

[John Houghton]

Thomy, Do you have PTGui Pro?  If so, you might be able to get significantly better alignment by making use of viewpoint correction to correct for movement of a drone between shots.  Follow the general advice in Para 5.6 of the PTGui FAQ (which can be found under the "Learn" menu heading).  But for a quick solution , do as Erik suggests and make available a set of images.

John

[Philip Chong]

A few minor things here and there, I do plastic surgery using healing brush, patch, transform, etc. whatever the photo editor dish at you. 

[Thomy Kern]

I use PtGui Pro 

Source files

[John Houghton]

Thanks for supplying the images.  However, I got a virtually perfect stitch by just running Align Images.  I do see one really tiny glitch on one white line, which is barely noticeable and could easily be corrected with an edit in Photoshop. I used PTGui Pro v13.9 and the project file is attached.

John

[Thomy Kern]

Now it looks great!

Thanks a lot. But let my know what you did: You only aligende the images or added some control points or optimizing something?

[Philip Chong]

Wanna to ask you, I saw the whole series of photos, everything is fix, but only the ISO is not and it varied.  Everything should be fix, including the ISO.

For daylight, unless I am shooting bullet trains and watersfalls, I leave it at ISO 100, no denoise of anything is great.

[John Houghton]

On Sunday, July 26, 2026 at 9:32:10 AM UTC+1 Thomy Kern wrote:

Now it looks great!

Thanks a lot. But let my know what you did: You only aligende the images or added some control points or optimizing something?

This is precisely what I did:

1. Load in ptgui.

2. In Windows File Explorer:  Select all of the images and drag and drop them into the PTGui window.

    Immediately above the Align Images button, it informs you that "The images are already roughly positioned".  (Using positional data stored in the images).

3. Click the Align Images button.  A warning message is displayed advising you that some of the images don't have any control points on them.  This is to be expected since there are sky images that are entirely blank and thus devoid of suitable features for control points.  However, those images have been automatically positioned fairly accurately already, and so will blend in perfectly adequately.  No problem.

4.  So you  can now proceed to generate the output panorama by selecting the Create Panorama tab at the bottom of the tab list on the left.  Then select the output file format and optionally browse to where you want the output file to be placed.  Then Click "Create Panorama".

That's absolutely all, but out of interest: click on the Project Settings tab on the left (Generally only visible when Advanced mode selected).  Under "Align Images" behaviour you will see exactly what actions will be performed when that is run.

John

[Thomy Kern]

The pictures were made by a DJI Mavic 4 Pro. I do not know to fix the ISO (and all other values) at the same time.

[Thomy Kern]

I tried following your instructions exactly (without your project file) using a different panorama. The difference is the input file format—this time it's TIFF. Same problem again.43 Pictures in tiff

[John Houghton]

Thomy, I would expect good quality jpeg images to give a very similar stitch as tiff images.  In this case, the tiff images you supplied don't seem to contain the detail in your photograph and stitch perfectly fine.  Is that part of a bridge?  The glitch you show is most likely due to parallax caused by movement of the drone.  You might convert your tiff images to jpeg and see if that does indeed make a difference.  By all means supply a set of jpegs (preferably) for the intended panorama set.

John

[Thomy Kern]

The same result in JPG format as well.

The individual images from the drone are in DNG format. I thought that converting from DNG to TIFF would preserve more information in the image than converting to JPG.

Question: Is converting from DNG to another format even necessary for the stitching process?

[John Houghton]

On Monday, July 27, 2026 at 8:35:16 AM UTC+1 Thomy Kern wrote:

The same result in JPG format as well.

Assuming the result shows the glitches in the road, then save your project file and supply that + the jpg images so that the stitch with the glitches can be readily reproduced and investigated.

 

The individual images from the drone are in DNG format. I thought that converting from DNG to TIFF would preserve more information in the image than converting to JPG.

Question: Is converting from DNG to another format even necessary for the stitching process?

It's not necessary to convert DNG to another format, but sometimes an alternative raw image converter might offer improved results for one reason or another.  Preferably convert to a 16bit lossless format such as tiff. 

John