Hello everybody,
after my few mails last weeks, I finally succeeded to produce a timelapse
"easily" using darktable-cli and mencoder bins in a java program, so called
"timelapse-darktable".
I've set up a quick demo to understand the principle:
I have a series of 10 JPG files put in rawImg (still images, without moving
the camera)
I have 2 key frames (first and last pictures),
I set a "clipping" filter to make a framing on left on the first frame, on
the right on the last frame.
I want to interpolate the clipping filter on every frame of the series, to
have a travelling from left to right.
Then I generate a video from each interpolated frame.
No need to install anything, just foloow the ReadMe file to run the jar on
linux.
It will be helpful if you can answer to this mail to give me some feedback
:-)
The demo archive:
https://drive.google.com/file/d/0B6HrG0afirOlRk45UTNqeHB4dms/edit?usp=sharing
For the project sources see here:
http://code.google.com/p/timelapse-darktable/
Basically, I recall in this mail the main principle to generate your own
timelapse:
1. make your serie of photo, put the raw images in one folder, "rawImg" for
instance
2. import in darktable the keyframes of your timelapse (at least first and
last ones)
3. adjust your filters (not all filters are available yet see in
operations/iop code)
4. put your XMP files corresponding to the key frames into one folder
"xmpKeys" for instance
5. launch timelapse-darktable with at least the following arguments:
java -jar timelapse-darktable_r13.jar "rawImg" "xmpKeys" "outFolder"
The goal is to be able to do that with any filter of darktable (if it makes
sense) to have smooth transition on the video, defining only some key
frames.
The final goal is also to manage de-flickering and other automatic
brightness tuning.
Hoping that someone will be interested !
Alex
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