Hello everybody,
I have a project for a long time : combine the power of darktable with
small scripts i've made to export frames for my timelapses.
Let me explain a little bit:
With the timelapse photography you can encounter some problems with fast
brightness transitions (flickering). Or you may want to adjust some
parameters differently at the nightfall transition for example (a tuning
for daylight, another tuning for the night). In this case, a smooth tuning
transition is required to have a natural rendering (like in video).
That's why I've developed some scripts to do these jobs but with "convert"
cli-tool, operating on JPG only. My goal is to do the same with darktable
thanks to the darktable-cli, or directly indarktable just by modifying .XMP
files externally.
To do this I just need 2 things:
1. one way to convert .XMP file in "readable" format to get all filters and
their parameters defined thanks darktable (blendop params if i've well
understood the code).
For example, convert .XMP in a file like this (with information like in
darktable GUI):
...
Exposition
Brightness = +0.3
Darkness = 0.0
White Balance
Tone = 1.0
Temperature = 6500
...
2. The opposite function : transform a "readable" file (defined in 1.) into
a XMP file for darktable.
It could be just one button to export/import this kind of "readable" file
in darktable.
Or a self-content little binary in CLI converting XMP in readable file or
readable file in XMP.
Is somebody interesting in this project ?
Could somebody help me to do this ?
(I have no knowledge to compile/set environment of development, but I can
modify/understand code).
He would have my eternal consideration :-) !
examples of some of my timelapses:
Sunset
with flikering:
http://www.youtube.com/watch?v=ndWmV1mZhUE
after filtering with my scripts:
http://www.youtube.com/watch?v=VLov-Jhn3TM
Daylight
http://www.youtube.com/watch?v=Bl9G-1oGiGI
Alexandre (Toulouse (31) / France)
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