Making straight lines match

[Daniel Md]

A common problem I have been having in many of my panorama stitches is not getting straight lines match from image to image - the result being a glaring discontinuity in the final image. 

I primarily use the Simple interface, but I have tried using the Advanced interface and adding vertical line and horizontal line control points, and regular control points in the area where the discontinuity appears in the stitched image. None of that seems to help.

Example images and stitched result can be found here (see pillar on the left side of the stitched image)

Thanks,

Daniel

[Frédéric Da Vitoria]

On 14/12/2025 18:40, Daniel Md wrote:
> A common problem I have been having in many of my panorama stitches is
> not getting straight lines match from image to image - the result
> being a glaring discontinuity in the final image.
> I primarily use the Simple interface, but I have tried using the
> Advanced interface and adding vertical line and horizontal line
> control points, and regular control points in the area where the
> discontinuity appears in the stitched image. None of that seems to help.
>

Hello Daniel,

I see a parallax issue. Look at what you can see of the outside between
the door frame and the window frame. There is a white zone in the top
picture which can't be seen in the bottom picture. This means that a
wider portion of the outside wall is visible in the top image. No
software could match 2 pictures where an element changes dimensions this
way. The only way to solve this is to remove all control points on the
outside or on the window itself and the wall in which this window is
cut. There will be discontinuities in the background, but I guess this
is less annoying.

I can see a smaller discontinuity near the middle of the image, I guess
the same method could be applied there.

--
Frédéric Da Vitoria