export bracketed images before stitching

[arlo]

Hi

I've read that with PTGui 12 all bracketed sets are merged to HDR. Then the HDR images are blended into a panorama

Is it possible to export all the merged hdr images as exr,  before they are blended together into a panorama?

best

arlo

[PTGui Support]

Hi Arlo,

No I'm sorry, this is not supported. Actually the HDR merging happens
after the images are warped.

You can merge bracketed sets individually, see 7.8:
https://www.ptgui.com/support.html#7_8

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[arlo]

Thank you Joost

that was exactly the trick that I was using

But correct me if I'm wrong, if I choose Edit -> Fit Panorama, PTGui exports a warped image

For example, with a 5 bracket Canon 5D IV cr2 (resolution 5796x3870) I can export an exr with a resolution of 5794x3870

The HDR is perfect, like all the HDRs that we get from PTGui, but I'm afraid I have a small degradation of the image, due to the inner warping. Or is it just a simple crop of 2 pixels?

I shoot hundreds of bracketed images for photogrammetry, and it would be extremely useful to have an option to apply the HDR merging before the images are warped, and export all the merged HDRs, before stitching, with a single click. Would it be possible to submit it as a feature request for one of the next versions of PTGui?

This way I would be able to import either the panoramic, latlong/cubemap HDRIs stitched by PTGui, and/or the single HDR images from PTGui, all inside the photogrammetry software

Best regards

arlo

[PTGui Support]

Hi Arlo,

If you use rectilinear as the Lens Type and also output the panorama in
Rectilinear projection, no warping should be applied. If this still
happens, please make sure that the lens correction settings are set to 0
in the Lens Settings tab.

If you do Fit Panorama and output at the original size, you can even
switch to Nearest Neighbor projection. In this case absolutely no
interpolation will be done.

I'll add your request to the wish list.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

> www.ptgui.com <http://www.ptgui.com>

>
> On 07/08/2021 22:50, arlo wrote:
> > Hi
> >
> > I've read that with PTGui 12 all bracketed sets are merged to
> HDR. Then
> > the HDR images are blended into a panorama
> >
> > Is it possible to export all the merged hdr images as exr,
> before they
> > are blended together into a panorama?
> >
> > best
> > arlo
> >
> > --
> > You received this message because you are subscribed to the Google
> > Groups "PTGui Support" group.
> > To unsubscribe from this group and stop receiving emails from it,
> send
> > an email to ptgui+un...@googlegroups.com
> > <mailto:ptgui+un...@googlegroups.com>.
> > To view this discussion on the web visit
> >
> https://groups.google.com/d/msgid/ptgui/a9635486-82c6-418a-9e45-b4ce865479c5n%40googlegroups.com
> <https://groups.google.com/d/msgid/ptgui/a9635486-82c6-418a-9e45-b4ce865479c5n%40googlegroups.com>
>
> >

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[Bill Isenberger]

This would be an extremely useful feature for additional processing in photogrametry software. Was it ever implemented?