Stitch without any perspective

[HEPBO3AH]

Hi,

I took 4 photos of a single painting. I left overlap to stitch them into a mega photo.

The app is doing a great job of stitching, but the end result in preview is always as if I'm in a sphere.

In lens settings I selected 

Rectilinear in Lens Settings.

I'm using the Pro trial version.

How can I just do simple stitching and transformation for distortion (I did add vertical and horizontal lines in Control Points)?

[John Houghton]

Much depends on how you shot the photos.  If you shifted the camera relative to the painting, you can probably use the method for stitching mosaics.  See FAQ at:

https://ptgui.com/support.html#6_5

John

[PTGui Support]

Or, if possible, shoot the painting by placing the camera on a panoramic
tripod head, so there is no parallax. Just rotate the camera to cover
the painting. This will give the easiest good results.

Then it can be stitched as any regular panorama. Use rectilinear output
projection to preserve straight lines and position the painting in the
panorama editor until the edges are parallel.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 11/13/25 08:42, John Houghton wrote:
> Much depends on how you shot the photos.  If you shifted the camera
> relative to the painting, you can probably use the method for stitching
> mosaics.  See FAQ at:
> https://ptgui.com/support.html#6_5
>
> John
>
> On Thursday, November 13, 2025 at 6:22:44 AM UTC HEPBO3AH wrote:
>
> Hi,
>
> I took 4 photos of a single painting. I left overlap to stitch them
> into a mega photo.
> The app is doing a great job of stitching, but the end result in
> preview is always as if I'm in a sphere.
>

> Screenshot 2025-11-13 172221.png
>
> In lens settings I selected

> *Rectilinear* in Lens Settings.

>
> I'm using the Pro trial version.
>
> How can I just do simple stitching and transformation for distortion
> (I did add vertical and horizontal lines in Control Points)?
>

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[John Houghton]

On Thursday, November 13, 2025 at 6:22:44 AM UTC HEPBO3AH wrote:

I took 4 photos of a single painting. I left overlap to stitch them into a mega photo.

Exactly how did you shoot the photos?   If they are handheld shots, you might need to use viewpoint correction to get a satisfactory stitch.  If you care to make available for download a set of half size jpeg images, a sample project file could be provided to demonstrate the best way to proceed.

John

[HEPBO3AH]

> Or, if possible, shoot the painting by placing the camera on a panoramic
tripod head, so there is no parallax. Just rotate the camera to cover

the painting. This will give the easiest good results.

Unfortunately this was on my overseas trip to Europe. I cannot redo this. This is a niche painting in a museum that I loved and I wanted it to have it in high res to possibly print.

> Exactly how did you shoot the photos?   If they are handheld shots, you might need to use viewpoint correction to get a satisfactory stitch.  If you care to make available for download a set of half size jpeg images, a sample project file could be provided to demonstrate the best way to proceed.

I shot them by doing parallel movement in each quart of the of the photo, so the camera did move. I tried to stay leveled as much as I could.

I'll attach photos and the project in the next post.

> Much depends on how you shot the photos.  If you shifted the camera relative to the painting, you can probably use the method for stitching mosaics.  See FAQ at:

https://ptgui.com/support.html#6_5

I followed this and the results were definitely better, but still far off from perfect. Check the image.

Honestly, I just want this photo stitched. I'm open for any software that can do this as this painting just resonates with me and I want it in my house...

[HEPBO3AH]

Here are the smaller versions of the images:

https://drive.google.com/file/d/1mrJWQAhYPQEAps0jjU4HcQsl8G7UDnZL/view?usp=sharing

[John Houghton]

The overlap is very small, but I eventually managed a good stitch using viewpoint correction:

The project file is attached.

John

[HEPBO3AH]

Wow!

This is beyond amazing. I didn't manage to replicate with the original photos unfortunately. I don't know what I'm doing wrong :(. 

On the side, it seems that I would need a Pro version of the software. I wasn't checking out the price until now because I wasn't sure if it was even doable. 

Waaay to expensive for one off job.

Thank you for the image and the project though!

[John Houghton]

On Sunday, November 16, 2025 at 3:24:59 AM UTC HEPBO3AH wrote:

Wow!

This is beyond amazing. I didn't manage to replicate with the original photos unfortunately. I don't know what I'm doing wrong :(. 

Load my project file into a folder containing the full size camera files (same names as the small supplied images), and after opening the project file with PTGui Pro, go straight to Create Panorama.  There are many horizontal/vertical/straight line control points used in the project.  When creating them, beware of the "Cp type to add" selected option reverting to default when switching images on the Control Points tab.  This can be very confusing!  The behaviour can be inhibited by visiting Tools->Options->Control points editor.  In case you have any use for it, you can download the stitched image created from the small supplied images from: https://we.tl/t-WquWSGDftR .

John

[Kelly]

Well done - thank you John!

First time seeing Vizija (Vision), circa 1914, by the Serbian artist Miloš Golubovi  - I love this artist (Miloš Golubović)!