Timelapse DSLR, Ubuntu 10.10 gTimelapse and eeepc how to

I’ve played around with gphoto2 quite a lot and I knew there was a simple way to get my DSLR camera to take a photo every 10 seconds and copy it to anywhere I’d like. When googling how to do this I found a really nice application with a gui call gTimelapse. It amazes me that programmers just decide to write these programs and share them openly on their websites including the source code. gTimelapse is written by Tim Nugent, its a really nice program for doing timelapse, really simple to set up and easy to use. I like the preview and thumbnail preview of all the images it captures as it goes along in real time. Big thanks to Tim for this awesome program.

I thought I’d document the extra packages I needed to install to make it easy for other Ubuntu users to compile the program. Basically download it from the link on the page at Tims site then extract it somewhere and run the following commands.

$ sudo apt-get install build-essential libgphoto2-2-dev libwxbase2.8-dev libwxgtk2.8-dev gphoto2
$ configure;make;sudo make install
$ gtimelapse

The program will start and the rest is fairly straight forward. You probably want to change the max frames to 0 so that it records till you press stop. The other tip I would suggest that if you stop and start capturing make sure you set a new “Working Directory” in-between otherwise you will just overwrite the images you just captured.

I was pretty lazy and left a comment asking Tim for his mencoder command to put together the images at the end, his response was really quick which was nice.

Hi Chris, I think there should be a script in the src directory with some decent mencoder settings? Ah here we go, will make a 720p HD vid for Vimeo etc:

mencoder mf://*JPG -vc ijpg -mf fps=8 -vf scale=1280:720 -ovc x264 -x264encopts bitrate=5000:keyint=30 -o timelapse_1280x720_x264_8fps_5000.avi

Though I found that too jerky for my needs, Im sure its fine for his party video but I wanted moving clouds in mine so I changed the fps=8 to fps=25 and it was fine.

The other thing was that I shot in jpg normal which is 2144x1424px and I wanted my video to be 720p so I used David’s Batch Processor Gimp plugin to resize, crop and sharpen them a little before using mencoder. That gimp plugin worked really fast, its great.

It seems time consuming to capture the images, when I captured every 5 seconds for 30 minutes then encoded at 25 fps it only gave me around 14 seconds of video. So be prepared to spend a few hours to get a decent video. I think with my eeepc and nikon d90 with battery grip going outdoors I can capture for around 6 or 7 hrs.

When I went out to try this the weather was really crappy but it didnt turn out too bad, you can watch my video below or watch Brisbane Morning Time-lapse Test on youtube.

GNU/Linux Extract JPG from RAW, NEF, CRW using terminal, Nautilus, Digikam

[youtube_sc url=http://www.youtube.com/watch?v=jGeHGTuOJy8 width=640 rel=0 fs=1]

A common question by photographers who shoot in RAW is how to get a jpg the same as the one the RAW image file produces from the camera by using the RAW image file and a software package. In the screencast I talk about how to do that. Watch it above and you can also watch GNU/Linux Extract JPG from RAW NEF CRW using terminal, Nautilus, Digikam on youtube.

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Geotagging, Ubuntu and Nikon NEF with Digikam

Geotagging
Geotag

I haven’t made a screencast in a long time but I decided to share some info mostly about geotagging. I own a Nikon D90 and plan to buy a GPS unit that will write the global position system data to the exif metadata of my photographs and make them more manageable for me and allow me to do some cool things for visualising a map of my photographs.

I’ve been using a lot of programs to manage my photos but Im starting to settle for using DigiKam at least while using my best computer. The other program I talk about in the video is geotag.

A platform independent program to geotag images(use GPS data to store location information with the image).Uses external maps to fine-tune locations.

Anyone can use geotag to tag their photos very easily. Watch my video below.

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How to install Tux Paint stamps

I’ve talked about Tux Paint on this blog over the years and produced an informative and slightly humorous Tux Paint demonstration video back in 2006. The video has been downloaded 1,066 times from internet archive.org and viewed 31500 times not including the 14000 views from the version with low quality audio which Ive deleted.

The most common question I get asked is “how do I get the stamps?“. All of the people who have asked are on the windows platform, I believe this is probably because on Debian/Ubuntu systems the stamp packages are installed with Tux Paint. So rather than continue to reply to all the email and comments I decided to write this howto and perhaps someone will do the screencast version.

Getting Tux Paint stamps for windows and mac osx

The steps are the same, visit the Tux Paint website, chose your operating system then download and install the optional stamps package.

tuxpaint_website_dos_dl
Chose OS then download and install stamps

Some of the people that asked me about the stamps must have been too excited at the time they downloaded Tux Paint and didn’t notice the optional stamps package or perhaps they didn’t install Tux Paint. If you’re having trouble you might need to ask an adult for help, if that fails just go colour.

Tux Paint stamps on Ubuntu

Ubuntu software package managment
Ubuntu software package managment

On Ubuntu we have advanced packaging tools, software management programs and remote software package repositories. Pretty much all the software on my system has been installed this way, its easier and more user friendly then installing software on other systems and the amount of top quality software you can install is amazing. Using search its easy to find cool new programs, for example if you’re a social media guru you might search for twitter, facebook or blog software, if you need a web server running a wiki you might simply install mediawiki and enjoy watching all the system dependencies get met. The two programs I’ll mention are the Ubuntu Software Center and Synaptic.

Ubuntu Software Center

The Ubuntu Software Center is new in Ubuntu 9.10, some people may not have upgraded so we will also look at Synaptic. Synaptic is usually installed on most versions of Ubuntu.

The Ubuntu Software Center is available from the Applications menu.

Ubuntu Software Center
Ubuntu Software Center

Simply use search, type tuxpaint and click the arrow and your done.

Ubuntu Software Center - Search
Ubuntu Software Center - Search

Synaptic

Synaptic is available through System Administration menu.

Again simply use Quick Search and type tuxpaint, Synaptic gives us more information about the packages, to install/uninstall software you tick the box and hit apply.

Synaptic - tuxpaint
Synaptic - tuxpaint

Tux Paint still reigns as the best educational paint software. Usually people are having too much fun with Tux Paint to think of it as an intelligent tutoring system within a highly interactive learning environment.

Tux Paint is available for free and as free software and you can also purchase the CD. It makes a great gift.

96% of public sector in France is using open source

opensource
Unixmen.com report that almost the entire public sector in France, 96 percent, is using open source, according to a  market survey. The most used applications are database management systems and content management systems.

A research firm, Markness, presented a summary of its report on the use of open source in France on 17 September in Paris. It is based on an on-line survey during in the summer months followed-up by interviews with 160 IT project directors, heads of procurement and other IT decision makers, half of which are employed in the private sector and the other half representing the public sector. Another fifty interviews were held with IT vendors.

Using open source requires firms and organisations to seek technical assistance and support, said 54 and 44 percent of the respondents. It also requires changes to their IT maintenance, said 38 percent. The research firm says that half of the respondents say that the current financial crisis is not a reason to switch to open source. However, to 39 percent this did make it more of an option. In 2011, open source will take up less than 20 percent of the IT budget of public sector institutes. Markness expects the French open source IT market to grow by more than 16 percent in 2011.

Open Source sculpt tool in Second Life – Open Loft

Open Loft is an Open Source sculpting tool for use in Second Life. It consists of a series of scripts and objects that enable you to create sculpted prims in world.

It is available free from Xstreet SL and it is Open Source, so can be modified and redistributed under the terms of the GPLv3.

The creator Falados Kapuskas has developed several Open Source tools and scripts for translations, animations, building and more. All of the items are available free and are all on the Xstreet SL website.

Worlds best paint software for kids



Watch the Tux Paint video on Youtube
. Or download high resolution(810×630) Tux Paint video in Ogg, Avi and Flash format.

Tux paint is Free software. Visit the Tux Paint home page and download your free copy today.

Bill Kendrick has lots of awesome software. Check out New Breed Software – Games and stuff for Linux, Windows, Mac, Dreamcast, Zaurus and more.

Hands down Tux Paint is the best drawing program for children ages 3 to 12.

For more info check out the Tux Paint article on Wikipedia.

Open source tools in Secondlife – Builders Buddy

I’ve been thinking about what other useful tools I can introduce to educators in secondlife. Builders Buddy is useful for people interested in building. I put together a small package with a tutorial, you can get a copy of builders buddy in sl. Watch the Builders Buddy video on youtube to see what it is. Probably one of the cool things I didn’t mention was wearing it as an attachment and using it to rez a few seats that would follow you around. Maybe I’ll make a part 2 video that also looks at the configuration options at the top of the main script. People used to proprietary products in sl would probably know of something like this that’s usually called a rez box.

Sculpted prims in Opensim more advanced than SL


Sculptie Physics on OpenSim from Dahlia Trimble on Vimeo.

Source

Teravus was teaching me about the internals of the meshing for physics on opensim when the topic came up about making a mesh out of a sculpted prim. I mentioned I would like to attempt to make one and try it out, and a few hours later he had it working! This video is Dahlia walking on a sculpted prim spaceship in OSGrid after updating to his new code.

More info

In secondlife sculpties only collide on bounding boxes, which make them really only suitable for visuals, not for part of complex builds. Due to some early work done by Teravus this week, that’s no longer true for OpenSim. We’re now creating a tri-mesh collision surface for sculpties and passing that into our physics engine.