Landscape Astrophotography - Multi Row Blue Hour/Night Sky Blend

[Hugh Brown]

Landscape Astrophotography - Multi Row Blue Hour/Night Sky Blend

What works most effectively with PT Gui:

1. Ingesting blue hour foreground row photos and night sky row photos into PT Gui all at once? or,

2. Ingesting a single row of images at a time and then combining foreground and night sky rows in a subsequent stack?

What are the advantages and disadvantages of each approach?

[Erik Krause]

Am 03.08.26 um 00:24 schrieb Hugh Brown:

> 1. Ingesting blue hour foreground row photos and night sky row photos into
> PT Gui all at once? or,

For alignment, it's always better to have all images that need to be
aligned together in PTGui. You can always output them as separate
panoramas if you enable or disable the relevant images.

PTGui's Optimize Seam also might simplify the masking of sky and
landscape. However, if the landscape images are brighter than the sky
ones, the brightness might bleed into the sky, since PTGui tries to
equalize brightness and color along stitching seams. This can be
minimized if you adapt the brightness manually on Image Parameters tab
or try an automatic adjustment on Exposure/HDR tab.

Trying to align separately stitched rows might fail, because of minor
alignment errors that add up throughout each row.

--
Erik Krause
http://www.erik-krause.de

[Hugh Brown]

Got that Eric.  Thank you.

Did you see my other questions in other posts by any chance?  They also relate to this question.

Cheers.  Hugh.

[PTGui Support]

Hi Hugh,

If the images were taken at different lighting conditions, you need to
stitch them as separate panoramas.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 8/3/26 00:24, Hugh Brown wrote:
> *Landscape Astrophotography - Multi Row Blue Hour/Night Sky Blend*

>
> What works most effectively with PT Gui:
>
> 1. Ingesting blue hour foreground row photos and night sky row photos
> into PT Gui all at once? or,
> 2. Ingesting a single row of images at a time and then combining
> foreground and night sky rows in a subsequent stack?
>
> What are the advantages and disadvantages of each approach?
>

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