Patching in Photoshop - image exposures not matching?

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David S

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May 23, 2025, 9:34:09 AM5/23/25
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Hi folks. New here, first time I've needed to ask something! 

I've watched the recent Patching tutorial, and when the patch in the example is opened -- at this timestamp: https://youtu.be/gznuIgozCVc?t=364 -- it matches the exposure of the original images. All good, makes sense.

But... when I open a patch, it seems much too dark compared with the original images (exported TIFs from Lightroom). Below is a screenshot of the patch image exported from PTGui as a JPG2000 (PTGui is working with TIFs exported from Lightroom), next to a JPG2000 copy of a section of the TIF of the floor that I was going to drag on top and distort/skew. 

How can I get these 2 images to match in terms of exposure/colour? Am I missing a setting somewhere?

Thanks for any help!
David.

PTGui Patch Question.jpg

PTGui Support

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May 23, 2025, 9:48:12 AM5/23/25
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Hi David,

If your panorama was taken in automatic exposure mode, or if you used
bracketed images, PTGui will generate a patch image equivalent to your
darkest (shortest) exposure. This is to ensure that highlights will
never be clipped in the patch image.

In this case you don't have to use the patch editor though, just add the
skewed image to the project and use viewpoint correction.

See the video tutorials, part 7:
https://ptgui.com/videotutorials.html

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com
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David Stroud (Up Here Media)

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May 23, 2025, 10:01:13 AM5/23/25
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Hi Joost,

Thank you! How did I miss Viewpoint Correction until now? (probably just because I never needed it so never looked for it)... Brilliant, problem solved!

Much appreciated!
David.
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