Using a ShuttlePro with Kdenlive

I bought a little hand friendly thing with a lot of buttons and wheels – a Jog-Shuttle called “Contour ShuttlePro v2”. It’s supposed to make video editing a lot easier by putting most of the functions you need on the fingertips on one hand. With mouse and keyboard there is a lot of moving around.
I got a bit of trouble while setting it up – so here is my write up for later reference – perhaps mostly for me after a reinstall.

Getting Kdenlive to recognize it

Out of the box some key work as mouse buttons and the wheel acts as a mouse wheel. The other buttons do nothing. But Kdenelive doesn’t find it.

I followed the manual and set up an udev rule. Get root and create the file /etc/udev/rules.d/90-contour-shuttleXpress.rules . Put this line into it:

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0b33", ATTRS{idProduct}=="0030", MODE="0444"

Now we have to find the device address. Open a console and enter

fgrep Contour -A4 /proc/bus/input/devices

My output was:

N: Name="Contour Design ShuttlePRO v2"
P: Phys=usb-0000:00:1a.0-1.1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.1/3-1.1:1.0/0003:0B33:0030.0001/input/input3
U: Uniq=
H: Handlers=mouse0 event0

The event0 in the last line is the number to be entered at Kdenlives dialog – in my case as /dev/input/event0.

Now Kdenlive found the thing an I could set up some keys. (Findig a good keymapping is another thing….. ) But the wheel made funny stuff – like the mouse wheel. Somehow Kdenlive got the events in duplicate – as mouse wheel and jog-shuttle. Chaos.

In a mailing list I found the solution: disable xinput for this thing. Look for the device by

xinput --list

I found the line

   ↳ Contour Design ShuttlePRO v2 id=8 [slave  pointer  (2)]

And with the line

xinput set-int-prop 8 "Device Enabled" 8 0

I got rid of it in xinput. The first 8 is the id of the device, the second one is magic.  😉

Now it works like a charm.



New Krita Videos – and a Kickstarter to help Krita

Ramón Miranda has published 4 short Krita tutorial videos as a support of the Kickstarter campaign to accelerate Krita development.

Krita is a Digital painting application for artists created by artists and is available for Linux and Windows. Maybe MacOS in future. It’s one of the Kickstarter goals for overfunding.

If you like Krita, throw some money at them. Money is so unpersonal, but it helps a lot. 😉 The intended 24 goals are on the web site of Kickstarter – and they look really worth to have!

Krita Kickstarter

Krita tip 01. Monotone image with Transparency Masks

Krita tip 02. Color curves with filter masks

Krita tip 03. Texturize your images. The easy way

Krita tip 04 Digital color mixer

Don’t forget that I’ll give away a copy of the Muses DVD by Ramón Miranda – if you want it, put a comment below Episode 199!

Episode 200 is under way, progress report are on the top of the side bar!

Episode 199: G’MIC

Download the Video! (33:10, 63MB)

No Companion File!

Watch at YouTube

G’MIC is a lot of things that do stuff with images. You have a stand alone program with a complete image manipulation and analysis programming language, an online service and a GIMP plugin that gives easy access to (nearly) the whole package. Don’t get G’MIC from other sources than their pages – the update cycle is so fast that package maintainers can’t keep up. The version recorded in the video is already outdated twice at the time of the publication.

G’MIC is mostly developed by Dr. David Tschumperlé of the GREYC, an institute at the University of Caen in France that is also part of the Centre National de la Recherche Scientifique (National Center for Scientific Research). So definitely no hobbyist project.

I met David and his friend and colleague Jérôme – also a scientist AKA Dr. Jérôme Boulanger – at the LGM in Leipzig. Very nice guys! See Pat David’s wonderful blog post for more images and a report.

You can find information about G’MIC at their site in the very good and complete manual, at YouTUBE from G’MIC and David, at Pat David’s Blog and all over the Internets.

The second part of the video is a promotion for Ramón Miranda‘s very good training DVD “Muses”. It goes through the whole process of learning Krita – a graphics program under Linux and Windows, which is much better for painters than GIMP – up to finishing a real digital painting. You can buy the DVD at the Krita shop, 32.50€ is comparable to other kinds of such DVDs and the proceeds support the Krita Foundation.

I got this one for free – and I will give it away! If you want to have it, write a comment to this blog post before Episode 200 is published. Get your mail address right (it will only be visible to me) and mention that you want the DVD. After the deadline I’ll have some supposedly innocent children draw a winner.


00:00:00 Start of video
00:01:10 Installing the G’MIC Plugin for GIMP
00:03:00 Installing and using G’MIC as a stand alone program
00:10:00 G’MIC Online service
00:10:40 Using the G’MIC GIMP Plugin
00:13:40 Pencil Drawing emulation as an example
00:18:10 Film emulations and grain as an example
00:25:15 Spectral filters – Fourrier included
00:26:20 Plotting Graphs with G’MIC
00:26:50 Conclusion
00:29:20 Ramon Miranda’s Krita tutorial DVD
00:33:10 EOF

Meet the GIMP Video Podcast by Rolf Steinort is licensed under a Creative Commons Attribution 4.0 Unported License.
Permissions beyond the scope of this license may be available at

Episode 198: Darktable revisited

Download the Video! (42:00, 80 MB)

No Companion File!

Watch at YouTube

darktable is an open source photography workflow application and RAW developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.”

I cant say it better than this bit from their page.

I had tested darktable in 2010 and found it promising – but stayed with f-spot and later Shotwell. But now I’ll switch to darktable.

These 42 minutes are a rigorously cut down version of my nearly 2 hours long walk through darktable – I was distracted so much by the endless modules and possibilities that I forgot the time. This will not be my last darktable video, I’ll try to focus a bit more on usable stuff in them. 😉

You can find Pascal’s videos at, you have to search a bit for them.

And here is a collection of darktable videos, recommended by our Bert (rayadagio).


00:00:00 Start and book savings announcment
00:02:32 Darktable startup
00:03:50 Importing images and grouping them
00:06:10 Copying and moving images
00:09:00 XMP files
00:10:30 Tagging
00:11:35 Geotagging
00:15:00 Rating and marking images on the Zoomable lighttable
00:16:20 The manual
00:18:30 The darkroom
00:21:00 The interactive histogram
00:21:40 Undo with the history stack
00:22:20 Lots of modules
00:25:40 Cropping and rotating
00:27:00 Zooming in the darkroom
00:29:30 Non destructive editing
00:30:20 Levels and curves
00:32:30 Stacking curves (and other modules)
00:33:20 Color correction
00:34:20 Monochrome conversion with color filters
00:35:30 Correction lens errors and lots more modules
00:39:00 Exporting the image
00:42:00 EOF

Meet the GIMP Video Podcast by Rolf Steinort is licensed under a Creative Commons Attribution 4.0 Unported License.
Permissions beyond the scope of this license may be available at

Episode 194: A look into digiKam (1/2)

194Download the Video! (28:46, 96 MB)

Watch on YouTube
This week nachbarnebenan shows how to use the KDE (and Windows) photo organizer digiKam. There is more to it, a second part will follow. I don’t know much about digiKam because I use Gnome Shell as my desktop environment and digiKam is made for KDE. It would run on my system, but I would have to install a lot of other stuff too. Linux users have a lot of desktop environments to choose from.

nachbarnebenan talks also about his 100 day photo challenge and has some valuable tips if you are up to a similar thing. He is also responsible for a lot of the content of the Meet the GIMP Wiki.


00:00:40 Linux and the “Desktop Wars” (Gnome, KDE et al)
00:05:10 Setting up digiKam
00:07:18 Starting digiKam
00:08:22 Declutter your screen
00:09:10 Selecting a dark theme
00:10:10 adding image collection paths
00:11:20 templates for image meta data
00:12:00 Kipi plugins
00:14:00 Insert: the 100 day challenge and a confession
00:20:10 Tagging images
00:22:40 The timeline
00:23:22 Fuzzy search – doesn’t work properly now
00:23:50 Face recognition and tagging people – also not now
00:24:10 Geographic search of geotagged images
00:25:15 Nesting albums
00:26:00 Selecting images with buttons – useful for tablets
00:27:20 Rating images and attach colour labels
00:27:30 Filtering images
00:28:20 Good Bye!

Meet the GIMP Video Podcast by Rolf Steinort is licensed under a Creative Commons Attribution 3.0 Unported License.
Permissions beyond the scope of this license may be available at

Episode 182: A Special Day

5 Years of Meet the GIMP!Download the Video! (30:37 61.1MB)
Download the companion file! (65.5MB)
It’s a special day today, five years ago I rolled out the very first episode of “Meet the GIMP!”. And now it is #182, that’s 0.7 episodes per week. 😉 Update: An error corrected below and the comments are working again!

But the show starts with an other anniversary. Twenty years ago these days Tim Berners-Lee (still without a “Sir” in front of his name) published the first photo on the World Wide Web. Up to then it had spent it’s first year or so text only. The users and servers were somehow connected to the CERN particle collider near Geneva. What’s better to put on an image in a nerdy environment than a band? An all female High Energy Rock Band, Les Horribles Cernettes, of course. So a quick and dirty Photoshop (Version 1) hack (yes, web sites were that ugly once…) intended as a base for an in house CD publication found it’s way to the computer of Berners-Lee and history was on it’s way. There seems to be quite a dispute about this just now. Why can’t people keep proper records when they are making history? 😉


Some epsiodes of Meet the GIMP! have found their way into an education program of the Indian Institute of Technology in Mumbai (Bombay). They dub them with Indian English and publish them on their server. The project Spoken Tutorial is a great way to reach out and broaden education. And of course I am proud that my material is used that way.

I love the Greyscale Icon Theme by Eckhard M. Jäger of the “Linux for Designers” blog. Keeping the active icon in color is a nice touch.

Ramon Miranda has updated his GIMP Paint Studio. This is a collection of brushes, patterns, gradients and more, bound together by presets and dynamic settings for tablet users. (If you don’t have a tablet, get one now!)

The GIMP Magazine is taking up steam. I have seen the drafts, they are nearly complete and get better all the time. Expect the first issue in early September.

And finally I process an image of a small part of the steam engine 01 1066, which I found in the Hamburg Main Station. The processing is nothing spectacular, just cropping, curves, a bit of burning and dodging. But this time I am printing the image on my brand new printer – an Epson 1500W. An Episode about printing is coming up, just now I am just playing around.

UPDATE I made a blunder here and switched the terms dodging and burning – I got the reminder of proper dark room culture from Saul Goode in the forum.

Burning is letting more light from the enlarger onto the paper (as I told in the show) but as it is a negative projected on light sensitive paper  the image gets darker. So I burned the lower right edge of the image.

Dodging is keeping light away from the paper and so making that part lighter, no light at all would result in unchanged white. I dodged the rust on the fitting in the center of the image.

And here comes the twist. A “burned out sky” is white on the final image because it has been “burned out” the negative, resulting in solid black there. I haven’t been in the dark room lab for decades, perhaps I’ll try it again after the printing fever has gone old. 😉 (BTW, my new pigment ink and refillable replacement cartridges arrived today…. )

A very good demonstration of burning and dodging is done in the film War Photographer about James Nachtwey. Worth watching, even without interest in dark room technique.

A big thank you to all of you for the support in these five years!


00:20 Les Horribles Cernettes
03:15 20 years of images in the net
03:50 Meet the GIMP is dubbed in Indian English by in Mumbai
06:20 5 years of Meet the GIMP!
07:00 Installing a grey icon theme
08:00 Where is your personal GIMP directory?
09:00 Gimp Paint Studio by Ramon Miranda
10:50 The presets give additional value
11:20 Dynamic settings
13:00 Dampflok 101066 in Hamburg Central Station
14:45 Opening and analyzing the image
16:20 Cropping for a print with a fixed aspect ratio
18:45 Make a backup layer
19:00 Curve tool to get black black
20:45 Dodging Burning with a layer and brush
22:50 Burning Dodging with a layer and brush
26:05 Sharpening
27:30 Saving the image
28:10 Printing is new for me
29:00 The GIMP Magazine is coming in September
29:55 5 Years – a summary.

Creative Commons License
Meet the GIMP Video Podcast by Rolf Steinort and Philippe Demartin is licensed under a Creative Commons Attribution-Share Alike 3.0 Germany License.
Permissions beyond the scope of this license may be available at

Episode 180: Not for Grown Ups!

Download the Video! (23:24 46.4MB)

Tuxpaint is a painting software for kids between 3 and 100+. Well, the targeted audience ends at an age of 12, but it is still fun to use when you are older. Tuxpaint is available for Linux, Mac OS X and all Windows flavours. Of course it is under the GPL and so free to get and to be shared. The ease of use beats everything I have seen in the professional educational market and I am considering to get it into my school.

The user interface and availability of tools in Tuxpaint can be configured to adapt to the skill level of the user and the level of annoyance the environment is willing to tolerate. There are nice sound effects, but how often can you stand


Also printing can be disabled because space on the fridge and ink cartridges have limits. The configuration is done with a separate program which can be kept outside of the reach of the little end-user.

The show starts and ends with some information about the upcoming GIMP Magazine. I am somehow involved in the team now but I promise to keep my priorities on this project here.

And then there is an invasion of goats int GIMP and 16 bits and more are in reach.

If you want to become a member of the forum, just drop me a mail at and tell me your intended user name.


01:00 GIMP Magazine
02:00 Goat Invasion – GIMP will get a lot of progress soon
03:00 16 and 32 Bit already running in the Goat Invasion branch
05:10 Tuxpaint
05:55 Setting Tuxpaint up
09:00 The Toolset
10:00 Painting and brushes
11:10 Lines
11:45 New canvas
12:20 Shapes
13:35 Stamps
16:40 Text
17:30 Magic! (scripts and filters in a mixed bag)
20:20 Saving and recovering images
20:40 Templates for coloring
22:50 GIMP Magazine

Creative Commons License
Meet the GIMP Video Podcast by Rolf Steinort and Philippe Demartin is licensed under a Creative Commons Attribution-Share Alike 3.0 Germany License.
Permissions beyond the scope of this license may be available at

Episode 176: Double Photivo

Download the Video! (34:04 67.9MB)
Download the companion file! (97.8MB)
It’s time for a guest again. Nachbarnebenan shows how to process a RAW image in the current (well, it was November…) version of Photivo. Photivo has a very different approach to image processing from GIMP and others. It’s more stacking up and tweaking of algorithms instead of making a series of changes one after the other. Fully non destructive and very powerful.

To isolate the model from the a bit to vivid background Nachbarnebenan produces two images from his RAW file. One is crisp and colourful – best for the model. The other one is soft and a bit dull – this tones the background down.
In the next episode he will show how to combine these two images in GIMP into one.

I am still looking for “Bad Good Images” from Phones and other not so good cameras!

Sorry, no TOC up to now.

Creative Commons License
Meet the GIMP Video Podcast by Rolf Steinort and Philippe Demartin is licensed under aCreative Commons Attribution-Share Alike 3.0 Germany License.
Permissions beyond the scope of this license may be available at