Vignette removing by flat plane - feature request

[Michał Niedźwiecki]

Hi,

PTGui Pro loads RAW. So, can load another flat plane RAW for vignette removing?

Bright correction by flat plane is easy to implementation when we have RAW image (before  demosaicing) because in RAW we have original measure of light. 

Currently I must use RawTherapee for develop RAW to TIFF and load TIFFs in PTGui Pro. Adobe Lightroom have flat plane correction too but not working well. 

-- 

Michał Niedźwiecki

[PTGui Support]

Hi Michał,

I think this can be done already. Assuming it's a true flat plane raw,
the idea is you can arbitrarily overlap two of these images:

Load your flat plane RAW image into PTGui
Load the same image a second time
Switch Panorama Editor to Edit Individual Images
Drag one of the images so you have about 50% overlap (you may need to
adjust the field of view to get both in view)
In the main window, switch to Advanced
Go to Exposure/HDR
and press Optimize Now
You can save the resulting curve. Keep in mind that vignetting is
aperture-specific.


Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[Erik Krause]

Am 04.01.22 um 10:12 schrieb PTGui Support:

> I think this can be done already.

Yes, if the vignetting is strictly symmetrical. Of course there are
(rare) lenses where this isn't the case.

--
Erik Krause