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Messages - RLaudi

Just in case someone else would like to make use of the Magic Latern XMP sidecar files generated with the brilliant ETTR feature with some free software only:

As I've found RawTherapee being anything but a bad candidate for RAW processing, I've tried to figure out a way to use it together with the Magic Latern's XMP sidecar files.

And I'd say I've created a working solution:


java -Xmx800M -jar xmpExposure2pp3.jar multiplyValue prototype.pp3 imagePath

  xmpExposure2pp3 looks for *.xmp files in imagePath and inserts the crs:Exposure2012 value
  from these after multiplying it with multiplyValue into a copy of prototype.pp3
  multiplyValue is anglo-am style value eg. 1.25; multiplyValue = 0 -> just show the xmp values
  prototype.pp3 needs to be full path to file

  java -Xmx800M -jar xmpExposure2pp3.jar 0.8 /Users/MeMyselfAndI/Desktop/testPix/TL_2015_04/IMG_0123.CR2.pp3 /Users/MeMyselfAndI/Desktop/testPix/TL_2015_04

prototype.pp3 should be generated with RawTherapee on a carefully selected image (usually either the 1st, last or center image) of the time-lapse sequence to set all the other desired image processing properties (it will then be generated automatically by RawTherapee next to the raw image file as soon as the raw settings were tweaked in RawTherapee). After that RawTherapee should be quitted before xmpExposure2pp3 is run. If RawTherapee crashes at the next launch of creating the new *.pp3 files (had that naughty one on Mac OS X for whatever reason) the remedy is to overwrite with the one in the installer RawTherapee*.dmg.

After xmpExposure2pp3 was run, you can start RawTherapee again and open the folder containing the timelapse image sequence, select them all, add them to the batch and export them with the exposure / deflicker compensation set individually per image.

This program is provided ´as is´ without any warranties and obligations.
Please note that you will use it completely at your own risk.

And here comes the link:


@dmilligan: while I was looking into the picoC/TCC scripting option of ML to implement some ramping ideas (and had to find out it's disabled at the moment) I bumped into your brilliant adv_int module which does exactly what I was looking for, so thank you very much for this great tool!
Just in case someone else is using the Silence Picture YUV422 feature of ML with Mac OS X:

I haven't found a slim and quick tool for Mac OS X to convert the .422 file format into a more common format, so I took the great groundwork by Wolfgang Hofer [[email protected]] and used it as basis for a small terminal / command line tool to convert the .422 files to TGA files. I would have preferred PNG as output format, but that would have taken significantly more development time and TGA files are fine for Quicktime image import as well for creating time lapse movies with this ML feature.

You may download this tool compiled for Mac OS X including the source code (which should compile on other platforms with a few changes as well) for free at:

To use it on Mac OS X, open a terminal window, drag and drop the executable file from the unpacked zip into the window, then drag and drop one ore more .422 files to the terminal window or even better the folder which contains the .422 files and hit ENTER.
Shortly after you should have a subdirectory named ML422YUVconverted containing the converted .tga files which you may import into Quicktime 7 Pro.

Please note that this tool is provided 'as is' as I've got loads of other things on my plate ;).