I'm not trying to produce a traditional HDR image.  I have a panorama image 
with clearly defined foreground, mid ground, and distance elements, and I'd 
like each region to have it's own set of non-linear level adjustments, and 
consequently the sharpening and saturation can vary between them.  There is 
a higher level of variance that can be produced by producing three sets of 
jpgs from the RAW images, and making 3 panoramas from each set of images, 
rather than producing a middle level jpg series, making a panorama out of 
that, and then stretching the panorama independently for the foreground, 
mid ground, and distance.  

I have one .pto file for the panorama, and three sets of images that are 
named the same, in different folders.  But when I apply the same .pto 
panorama parameters file, with no changes, the output has somewhat 
significant spatial differences.  I could understand if the control points 
varied between each set of images, since image elements present slightly 
differently with different levels and sharpening, but I'm using the same 
set of control points.  

In fact, just running the same .pto file subsequently with different images 
gives me different results.  It's like there's a stochastic element to the 
panorama creation, it doesn't produce the same results, consistently, given 
the same inputs- I can't reproduce the same panoramas.

Linux, Hugin
Version: 2015.0.0.cdefc6e53a58

On Saturday, December 16, 2017 at 5:05:40 AM UTC+1, Tduell wrote:
>
> On Sat, 16 Dec 2017 13:59:10 +1100, J Harvey <[email protected] 
> <javascript:>>   
> wrote: 
>
> > I am trying to manually create a HDR or mixed exposure image.  I want to 
> > stitch 8 image together with three different exposure and sharpening 
> > settings. 
> > 
> [snip] 
>
> I may not have understood why you are using the approach you describe, and 
>   
> wonder why you are not loading all the images and using stacks to get your 
>   
> HDR. 
>
> Cheers, 
> -- 
> Regards, 
> Terry Duell 
>

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