[Digikam-devel] [Bug 283628] New: New plugin: image stacking

[Tim]

https://bugs.kde.org/show_bug.cgi?id=283628

           Summary: New plugin: image stacking
           Product: digikam
           Version: unspecified
          Platform: Archlinux Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: Workflow
        AssignedTo: digikam-devel at kde.org
        ReportedBy: kde at stirfried.vegetable.org.uk


Version:           unspecified (using Devel) 
OS:                Linux

I understand that digiKam, through kipi, already supports both panoramas and
HDR via enfuse. Please can we have support for alignment+stacking, at least a
simple average of all the images passed? 

Justification/notes: The most noticeable effect of stacking is that with every
doubling of the number of images, in noise terms the effective ISO halves
(hence astronomers are particularly fond of it). A secondary consequence is
"synthetic long exposure" - all the motion-blur of a long exposure but either
at wider aperture or with less ND filtration required. The third use is for
super-resolution: sub-pixel realignment differences cast extra detail into the
image, either beating the limits of diffraction or facilitating larger
upscaling.

(For those with Photoshop or the Gimp: averaging can be achieved by loading
images into layers, setting their transparencies to 100, 50, 33,... 100/n%
where the background n=1.)

I, for one, would be very grateful - my workflow is increasingly dependent on
stacking a handful of images together.

Reproducible: Always



Expected Results:

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