Hmm, then maybe just output mapped images, since you don't want Hugin to blend them anyway? Then you can blend them manually.

I don't understand the seam finding algorithms, either. For all I know, NONE of them use a repeatable seam.

On 12/16/2017 11:21 AM, J Harvey wrote:
Not a focus stack.  A 2 row panorama, same focal length, same exposure, roughly the same focus at infinity (landscape image).

The panorama output is fine.  It's just not repeatable, even with the exact same input files, and no changes to the .pto file. I literally select 'stitch' twice (exposure fused from any arrangement, optimal size, no resizing set in preferences, all other values to default), three times, four times in a row without changing any of the variables, and each output panorama image is different.  See the gif I posted above.

I don't understand how the algorithm works, that the same exact variables produce different results, unless there is some random seed somewhere.

What I'd like to do, is to produce panoramas with consistently matched pixels, so that I can manually blend differently stretched jpgs derived from the same RAW files.



On Saturday, December 16, 2017 at 10:11:52 PM UTC+1, GnomeNomad wrote:

    Sounds like you're doing focus stacks.

    This search returned a number of articles and such about doing that
    with Hugin:

    https://duckduckgo.com/?q=focus+stack+hugin&t=ftas&ia=web
    <https://duckduckgo.com/?q=focus+stack+hugin&t=ftas&ia=web>


    On December 15, 2017 11:40:20 PM HST, J Harvey
    <[email protected]> wrote:

        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]>
            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


--
David W. Jones
[email protected]
wandering the landscape of god
http://dancingtreefrog.com

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