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kmando human computer interface

1.7

KDE Hardware Utility

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wedesoft
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Link: Link Depends on Qt 4.x Downloads: 3416	Submitted: Oct 11 2006 Updated: Jun 29 2009
Description: A software for camera-projector interaction was developed by Juan Roldan, Ushakiran Soutapalli, Julien Faucher, and Jan Wedekind at the Microsystem & Machine Vision Laboratory (MMVL) at Sheffield Hallam University, UK. The software makes use of a low cost off-the shelf webcam that is calibrated against a standard projector screen (note that at the moment the new video for linux standard version 2 (V4L2) is not supported yet). The webcam is used to determine the position of physical pointer (e.g. a pen) which is then used to virtually move the X11 pointer. Point-and-click functionality has also been implemented. The wizard allows you to take a reference picture showing the pointer. You then have to select the region in the image for generating a reference histogram. If you are using a projector, make sure that the desktop has a bright background. Otherwise the pointer will be illuminated differently and it will not be recognized any more. Donnie Bhayangkara has built a package of mando-1.6 for openSuSE 10.3 which can be downloaded here: http://software.opensuse.org/search?baseproject=openSUSE%3A10.3&p=1&q=mando For a video see http://video.google.com/videoplay?docid=4201589281466176805 Mando now has a new project page at Sourceforge: http://mando.sourceforge.net/ New releases at: http://sourceforge.net/project/showfiles.php?group_id=220882 Git access: git clone git://mando.git.sourceforge.net/gitroot/mando mando Discussion Forum: http://sourceforge.net/forum/?group_id=220882 License: GPL

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xgl crash

by mnpko on: Apr 12 2007

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after few hours of trial and error i have tried to compile kmando... it starts ok, when I click "configure" it opens the windows but when I click "close" it crash my XGL and logouts... after login I can see "Crash detected, XGl closed unexpectedly". :( Any idea?

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Re: xgl crash

by wedesoft on: Apr 13 2007

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I will test kmando with XGL and Beryl later this year. kmando uses Qt4-OpenGL which is well tested. XGL on the other hand has not reached release 1.0 yet.
Using kmando together with XGL is an exciting idea though ;)

http://www.freedesktop.org/wiki/Software_2fXgl

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: xgl crash

by jroldan on: May 19 2007

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I had the same problem. I got the message:
Xlib: extension "XFree86-DRI" missing on display ":0.0".

I solved it making this:
$ sudo restricted-manager

Then, if the checkbox (the one that corresponds with your graphic card) is unchecked, activate it. and reboot.

It happens because, although your driver is installed, it is not properly loaded.

Hope it helps

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help

by aldoshin on: Apr 13 2007

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hi.i've already installed the kmando, but when i tried to configure this, doesn't recognize my webcam, i have the next error: error setting chanel information for channel 0 of device "dev/video0": argumento invailido. my webcam works whit another applications. what can i do??

aldoshin
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Re: help

by wedesoft on: Apr 14 2007

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Make sure to use /dev/video0 (not dev/video0).

If you have another video device (TV-card for example), it is possible that your camera appears on another device (for example /dev/video1).

It is also possible that for some reason the camera driver makes the camera appear on another channel. In this case you need to install the new version of kmando (mando-1.4) which I just uploaded. I have added a new spinbox control which allows you to try different channels. Note that device number and channel are two distinct numbers. You may have to try several combinations to find your camera:

device=/dev/video0 channel=0

device=/dev/video0 channel=1

...

device=/dev/video1 channel=0

device=/dev/video1 channel=1

...

...

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: help

by wedesoft on: Apr 16 2007

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Maybe you have a camera with a V4L2 (video for linux version 2) driver. kmando as of version 1.4 only supports V4L1 (version 1).

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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same error

by yorch on: Apr 16 2007

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Hi, I have the same error of aldoshin, I've already install mando-1.4 and tried with many combinations but i can't make that my camera works with mando, I installed the pwc driver and uvcvideo, my camera works with luvcview but not with xawtv (My camera is logitech quickcam pro 5000). Please help.

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Re: same error

by wedesoft on: Apr 16 2007

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ucv is a V4L2 (video for linux 2) driver. kmando as of version 1.4 only supports V4L version 1. The uvc driver does not support the old V4L protocol (according to http://linux-uvc.berlios.de/). At the moment I am very busy. I will have a look at V4L2 when I get the time to do it.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Ubuntu deb for 1.4

by trevi55 on: Apr 19 2007

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Soon on my repo ;)

Treviño's Blog - Life and Linux
http://3v1n0.tuxfamily.org/blog
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Re: Ubuntu deb for 1

by wedesoft on: Apr 19 2007

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Ok. Thanks for your effort.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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image garbled

by ss0007 on: Apr 22 2007

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Hi ppl,
Cool application.I have just tried mando in my ubuntu fiesty. I get an image garbled as seen in the mando app.
You can check it out here ,
http://img337.imageshack.us/my.php?image=mandocq7.jpg

I use logitech Quickcam. Is there any workaround to solve this ?

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Re: image garbled

by wedesoft on: Apr 23 2007

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This is difficult for me to resolve without having access to the camera. Also I don't know, what camera you have. There are different Logitech Quickcam models (Pro 4000, Pro 5000, Chat, Messenger, ... ). You can login as superuser and
type "lsusb" to get the exact device-id.

Furthermore you can configure and compile the project in debug-mode:

./configure --enable-debug=yes
make

Running the program from the terminal then will give more information about the camera and what's happening.

Maybe the RGB colourspace support of your camera is broken. You can change the order of preferences for colourspaces in image_v4linput.cc line 172-174 to this (you need to build with "make" afterwards):
...
palette[ 0 ] = VIDEO_PALETTE_YUV420P;
palette[ 1 ] = VIDEO_PALETTE_UYVY;
palette[ 2 ] = VIDEO_PALETTE_RGB24;
...

Hope it helps.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: image garbled

by ss0007 on: Apr 23 2007

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Hey thx for the reply.
Actually I did not compile. I downloaded the debian deb file from edgy repo.

Anyway. lsusb gives me this id:
ID 046d:092e Logitech, Inc.
I think its Logitech QC Messenger.

As far as compiling is concerned,
I am a newbie.
This is what I got when I compled
"checking for X... no
checking for XTestFakeMotionEvent in -lXtst... no
configure: error: Check for XTestFakeMotionEvent in -lXtst failed
"

I think installing thru deb file might fix the dependency probs.But, I dont know abt the compile issue.

So, If you can guide me thru compiling, I can enable the debug mode, and show the output to you.

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Re: Re: Re: image ga

by wedesoft on: Apr 25 2007

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> ID 046d:092e Logitech, Inc.
> I think its Logitech QC Messenger.

No, according to http://www.qbik.ch/usb/devices/showdev.php?id=4028
it is a Logitech Quickcam Chat. This is actually one of the cameras I have at home. I had problems getting it to work with Michel Xhaard's newest gspca driver and I sent him an e-mail on March 1th 2007. I didn't receive a reply so far.

However I got the camera working with his old driver:

su # Login as superuser (or "sudo su")
cd /tmp
wget http://mxhaard.free.fr/spca50x/Investigation/Gspca/gspca-20060930.tar.gz
tar xvzf gspca-20060930.tar.gz
cd gspca-20060930/gspcav1
./gspca_build
exit

I also have to reduce the contrast-value of the camera quite a lot (you need kmando version 1.4 for this), because the default setting will give you an oversaturated picture. The colors are way off, but one can somewhatadjust them using the module-parameters (one can set them by editing /etc/modprobe.conf):

sudo su # Login as superuser
rmmod gspca

Add the following line to /etc/modprobe.conf:
options gspca autoexpo=1 usbgrabber=0 lightfreq=50 GRed=256 GBlue=350 GGreen=256 gamma=4

Then load the gspca-module back:

modprobe gspca

> As far as compiling is concerned, I am a newbie. This is what I got when I compled
> "checking for X... no
> checking for XTestFakeMotionEvent in -lXtst... no

If you still want to compile kmando, uou need to install libXtst.so.6. You can find out which package of your distribution you need to install at http://www.rpmseek.com/

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Webcams and Drivers

by nascar2z on: Oct 3 2007

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Hi,

I am doing a senior project for my college based on your software controlling a
linux multimedia server. I am having trouble getting a webcam (Logitech
Quickcam Fusion and my built in webcam to my laptop) to work with the software (I get this error with my built in webcam "Colour-grabbing with video-palette 7 (Mimas-index7) not supported by Mimas. Please contact developers". Is there a way to downgrade the
linux driver from version 2 to version 1 and allow it to work with a webcam?
What webcams (that I can go out and buy today) do you know work with the
software? Any help would be gladly appreciated!

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Re: Webcams and Driv

by wedesoft on: Oct 3 2007

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Video palette "7" is VIDEO_PALETTE_YUV422 (see /usr/include/linux/videodev.h). I think it is the same as VIDEO_PALETTE_UYVY. Can you replace the source file "image_v4linput.cc" with the following one and recompile mando-1.4?
http://www.wedesoft.demon.co.uk/downloads/image_v4linput.cc
Let me know whether it works.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 4 2007

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I replaced the file you included in your post with the same file and recompiled it. I was able to get it to compile and run, but still get an error when trying to use my webcam "Error setting channel information for channel 0 of device "/dev/video0":invalid argument". I have tried different video #'s and channels but my webcam is on video0 and the rest come up no such file or directory (from video1 on).

Re: Re: Webcams and

by nascar2z on: Oct 4 2007

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I replaced the file you included in your post with the same file and recompiled it. I was able to get it to compile and run, but still get an error when trying to use my webcam "Error setting channel information for channel 0 of device "/dev/video0":invalid argument". I have tried different video #'s and channels but my webcam is on video0 and the rest come up no such file or directory (from video1 on).

Re: Webcams and Driv

by wedesoft on: Oct 4 2007

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> I was able to get it to compile and run, but still get an error when trying to use my webcam "Error setting channel information for channel 0 of device "/dev/video0":invalid argument". I have tried different video #'s and channels but my webcam is on video0 and the rest come up no such file or directory (from video1 on).

kmando sets the video-mode to PAL. Maybe the driver does not like this. I have created a package for testing, which allows you to try other modes (PAL/NTSC/SECAM/AUTO). I hope it helps.
Let me know whether this works. You can download the package for testing here:
http://www.wedesoft.demon.co.uk/downloads/mando-1.5.tar.bz2

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 4 2007

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I recompiled with the 1.5 version you supplied, but still get the same second error. The web cam does work. I tested it out in "Multimedia Systems Selector" and It works correctly and /dev/video0 is exactly where it is. Do I have to change to an other driver or something? I tried changing channels and modes but that didn't do anything either.

Re: Webcams and Driv

by wedesoft on: Oct 4 2007

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Sorry to hear that it is still not working.
It looks like the following piece of code in "image_v4linput.tcc" is (still) not working:

chan.channel = channel;
chan.type = VIDEO_TYPE_CAMERA;
chan.norm = channel_norm;
MMERROR( xioctl( VIDIOCSCHAN, &chan ) == 0, mimasexception, ,
"Error setting channel information for channel "
<< chan.channel << " of device \"" << device << "\": "
<< strerror( errno ) );

This code selects the channel and the signal type. It is only necessary for capture cards with multiple channels or TV tuners with different input signals.
Can you comment this code out, recompile and tell me what happens?

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 4 2007

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When I comment out the lines (//) it compiles and runs like it should but I still get an error. This time it's the first One I was getting "Colour-grabbing with video-palette 7 (Mimas-index7) not supported by Mimas. Please contact developers".

I thank you for your on going patience and help with me on this matter. Some small thing just seems to not be working right with it.

Re: Webcams and Driv

by wedesoft on: Oct 4 2007

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If it says "Mimas-index" it is the old code again!
I mean to comment out the lines in the source file of the new package (with the combo-box for PAL/NTSC/SECAM/AUTO) which I put at
http://www.wedesoft.demon.co.uk/downloads/mando-1.5.tar.bz2

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 4 2007

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I though that that is what I had done. I downloaded the package again and commented out the lines you stated and get "Error reading from device: No such device".

Re: Webcams and Driv

by wedesoft on: Oct 6 2007

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I am sorry to hear that it is still not working. This error message however is really weird. I looked at the driver homepage (I guess the uvc module is in use here)
http://linux-uvc.berlios.de/
Maybe the V4L version 1 support of the driver is not completely developed.
There are two possibilities:
a) Someone adds V4L2 support to kmando
b) You get another camera (we are using Logitech Quickcam Pro 4000) for the moment
I am not sure when someone (probably me ;) ) will get around to add V4L2 support (I am also not 100% sure wether this will solve your problem). I will look into it (see http://v4l2spec.bytesex.org/), but I cannot promise to integrate it soon.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 17 2007

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Sorry I haven't replied. I went ahead and ordered the exact webcam you used for the software. It Works! I just need to study the calibration a bit more to have it detect a pointer of some sort like I saw in your Wiki pictures.

THANKS FOR ALL OF YOUR HELP! I Really Appreciate It and the Software!

Re: Webcams and Driv

by wedesoft on: Oct 17 2007

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Sorry that I don't have V4L2 support yet. I hope I will get around to do it some time.
Currently I am working on "HornetsEye" which will make implementing an application like "kmando" much easier:
http://www.wedesoft.demon.co.uk/hornetseye-api/

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and

by nascar2z on: Oct 25 2007

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I checked out your new project and it looks really cool!

I have a quick question though! I have been trying to fine tune the software with a pointer. I am having a bit of trouble understanding some of the steps and what they mean:

1. What is the importance of the picture adjustments in the first step?

2. How close should the webcam be when I grab an image of the pointer?

3. How much of the pointer should I select to make an accurate color selection?

4. What does the threshold and range do? Should those be adjusted or left at default?

5. What are recommendations for the button pressing options in the last step? It seems to adjust it's self but I don't know what it's basing it off of.

Any additional info would be helpful. Thanks So Much!!

Zach

Re: Webcams and Driv

by wedesoft on: Oct 25 2007

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1. What is the importance of the picture adjustments in the first step?
You need to make sure that the whole projection screen is covered by the camera. Otherwise the calibration will fail.

2. How close should the webcam be when I grab an image of the pointer?
You should use the pointer in a natural position (i.e. close to the screen) because the colour will be used to detect the pointer again later.

3. How much of the pointer should I select to make an accurate color selection?
You need to try this out. It is important that the pointer has a colour which does not appear in the image. It is a trade-off between not detecting the pointer or mistaking some areas on the screen for the pointer.

4. What does the threshold and range do? Should those be adjusted or left at default?
The threshold determines the range of colours being accepted (same trade-off as above). The range defines the size of the region for pointer tracking. It's a trade-off between CPU-load and tracking performance.

5. What are recommendations for the button pressing options in the last step? It seems to adjust it's self but I don't know what it's basing it off of.
The last step is for selecting the motion threshold for mouse-clicks. Mouse-clicks are issued whenever the pointer is nearly stationary for a certain time. The wizard allows you to set the number of samples and a threshold for the root-mean-square of the pointer movement.

If you want to know exactly what the software is doing, you really should read the source-code ;)

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Webcams and Driv

by nascar2z on: Oct 28 2007

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Thanks for the info. I am still a bit confused though. I can't quite get the cursor fine tuned to not jump around and it sometimes goes off of the pointer and takes a minute to recognize the pointer's location. What is the optimal settings for range, threshold, and sigma? What does the sigma do? I have tried to adjust the settings to fine tune them, but it either doesn't recognize the pointer or it does but jumps around a bit and doesn't like some colors like blacks (I am using neon pink tape on the end of a long stick as my pointer). I noticed your pointer was smooth and went right where you wanted it to. Any help on fine tuning settings would be appreciated. I'm not really good at source code so reading the code wouldn't really help me much. Thanks for your patience.

Re: Webcams and Driv

by wedesoft on: Oct 29 2007

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Sigma is the amount of blurring applied to the segmented image before locating the pointer.
I used a bright desktop background because otherwise the pointer is not illuminated and detection becomes unreliable.
Another idea would be to try a laser pointer (see http://www.mine-control.com/go.html). I didn't try this myself and I don't know whether it will work.
The software is just using colour segmentation. So you need to avoid using the same colours for pointer and projected image. Also the illumination of the pointer should not change to much.
I hope you get the results you need.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: Webcams and Driv

by nascar2z on: Nov 14 2007

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We are almost done with our project but I have a few more questions to ask.

1. I would like to provide the students in my class with some background on your software. ie. What your motivation was for developing such an application? How long it took to develop? A rough overview of the process the software takes to perform such a task. And anything else you would be willing to share.

2. One final question regarding configuration. I am having a bit of trouble in selecting objects. What does the delay and sensitivity do and how should those be set? I finally found a setting that optimized both performance of the cpu and tracking of the pointer.

Thanks!

Re: Webcams and Driv

by wedesoft on: Nov 14 2007

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Cool. Make sure you send us your project report (if there is any) and give us links if you publish something on the web!

The software is a community projects. If you look at the homepage, you will see a list of contributors. For a detailed description on how the software works I refer to Juan's report [1].

I am not sure what the motivation of each person working on this project is/was ;) But I think it is a lot of fun to work on a small piece of software which has a big effect. It took nearly one year to get the project to this point but it was not worked on continuously. Also code from Mimas[2] and Bright[3] was used. The software furthermore is based on Boost, OpenGL, Qt, Lapack, and Fftw. Maybe it could have been done in about two months but the concept was not clear in the beginning and development was not straightforward. Thanks again to all involved for their endurance and motivation.

Delay and sensitivity are two parameters for detecting when the pointer has stopped moving (for issuing mouse clicks). The delay determines the amount of pointer positions to be collected and the sensitivity is a threshold for the allowed variance of the pointer position in this time. If the variance is below the threshold it is assumed that the pointer is stationary and a mouse click is issued.

Thanks for using the software in your project.

[1] http://vision.eng.shu.ac.uk/jan/report_roldan.pdf
[2] http://vision.eng.shu.ac.uk/mmvlwiki/index.php/Mimas
[3] http://vision.eng.shu.ac.uk/mmvlwiki/index.php/Bright

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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image resolution

by volleyball on: Jan 31 2008

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Hi,

today I tried to test your cool application.
As I have only a firewire camera (Apple iSight), it's a bit tricky to get this tool running with my camera: I use coriander to get a v4l export using the vloopback device.
The problem now is that I cannot see the whole image in the mando window. If I use a resolution of 320x240, only a very small part at the bottom of the image stays black. If I use 640x480 pixel as resolution, I see only 1/6 of the camera image (upper part).
In order to check the v4l output of coriander, I used effectv to see the image. In order to see a valid image there, I needed to specify the image resolution manually. Thus I was able to see correct images.
Is there a workaround to get the whole image in mando as well?

Thanks in advance!

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Re: image resolution

by wedesoft on: Feb 3 2008

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You can try forcing the size by editing the file mandoWizard.cc. You can change this

input = VideoPtr( new Video( (const char )ui.deviceEdit->
text().toLatin1(),
ui.channelSpinBox->value() ) );

to

input = VideoPtr( new Video( (const char )ui.deviceEdit->
text().toLatin1(),
ui.channelSpinBox->value(),
640, 480 ) );

Sorry, but I don't have time currently to add Firewire support.

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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Re: Re: image resolu

by wedesoft on: Feb 6 2008

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After e-mail conversation. Here the KDE-apps posting for the public:

When forcing software rendering the problem disappears:

export LIBGL_ALWAYS_INDIRECT=1
./mando

The problem seems to be a bug in the glDrawPixels method of the ATI driver for GNU/Linux (GL_BGRA colourspace display in this case).

jan at wedesoft.de
http://www.wedesoft.de[mon.co.uk]
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kmando human computer interface

KDE Hardware Utility

xgl crash

after few hours of trial and error i have tried to compile kmando... it starts ok, when I click "configure" it opens the windows but when I click "close" it crash my XGL and logouts... after login I can see "Crash detected, XGl closed unexpectedly". :( Any idea?

Re: xgl crash

I will test kmando with XGL and Beryl later this year. kmando uses Qt4-OpenGL which is well tested. XGL on the other hand has not reached release 1.0 yet. Using kmando together with XGL is an exciting idea though ;) http://www.freedesktop.org/wiki/Software_2fXgl

Re: xgl crash

help

hi.i've already installed the kmando, but when i tried to configure this, doesn't recognize my webcam, i have the next error: error setting chanel information for channel 0 of device "dev/video0": argumento invailido. my webcam works whit another applications. what can i do??

Re: help

Re: help

Maybe you have a camera with a V4L2 (video for linux version 2) driver. kmando as of version 1.4 only supports V4L1 (version 1).

same error

Hi, I have the same error of aldoshin, I've already install mando-1.4 and tried with many combinations but i can't make that my camera works with mando, I installed the pwc driver and uvcvideo, my camera works with luvcview but not with xawtv (My camera is logitech quickcam pro 5000). Please help.

Re: same error

ucv is a V4L2 (video for linux 2) driver. kmando as of version 1.4 only supports V4L version 1. The uvc driver does not support the old V4L protocol (according to http://linux-uvc.berlios.de/). At the moment I am very busy. I will have a look at V4L2 when I get the time to do it.

Ubuntu deb for 1.4

Soon on my repo ;)

Re: Ubuntu deb for 1

Ok. Thanks for your effort.

image garbled

Hi ppl, Cool application.I have just tried mando in my ubuntu fiesty. I get an image garbled as seen in the mando app. You can check it out here , http://img337.imageshack.us/my.php?image=mandocq7.jpg I use logitech Quickcam. Is there any workaround to solve this ?

Re: image garbled

Re: Re: image garbled

Re: Re: Re: image ga

Webcams and Drivers

Re: Webcams and Driv

Re: Re: Webcams and

Re: Re: Webcams and

Re: Webcams and Driv

Re: Re: Webcams and

Re: Webcams and Driv

Re: Re: Webcams and

Re: Webcams and Driv

If it says "Mimas-index" it is the old code again! I mean to comment out the lines in the source file of the new package (with the combo-box for PAL/NTSC/SECAM/AUTO) which I put at http://www.wedesoft.demon.co.uk/downloads/mando-1.5.tar.bz2

Re: Re: Webcams and

I though that that is what I had done. I downloaded the package again and commented out the lines you stated and get "Error reading from device: No such device".

Re: Webcams and Driv

Re: Re: Webcams and

Sorry I haven't replied. I went ahead and ordered the exact webcam you used for the software. It Works! I just need to study the calibration a bit more to have it detect a pointer of some sort like I saw in your Wiki pictures. THANKS FOR ALL OF YOUR HELP! I Really Appreciate It and the Software!

Re: Webcams and Driv

Sorry that I don't have V4L2 support yet. I hope I will get around to do it some time. Currently I am working on "HornetsEye" which will make implementing an application like "kmando" much easier: http://www.wedesoft.demon.co.uk/hornetseye-api/

Re: Re: Webcams and

Re: Webcams and Driv

Re: Webcams and Driv

Re: Webcams and Driv

Re: Re: Webcams and Driv

Re: Webcams and Driv

image resolution

Re: image resolution

Re: Re: image resolu

After e-mail conversation. Here the KDE-apps posting for the public: When forcing software rendering the problem disappears: export LIBGL_ALWAYS_INDIRECT=1 ./mando The problem seems to be a bug in the glDrawPixels method of the ATI driver for GNU/Linux (GL_BGRA colourspace display in this case).

I will test kmando with XGL and Beryl later this year. kmando uses Qt4-OpenGL which is well tested. XGL on the other hand has not reached release 1.0 yet.
Using kmando together with XGL is an exciting idea though ;)

http://www.freedesktop.org/wiki/Software_2fXgl

Hi ppl,
Cool application.I have just tried mando in my ubuntu fiesty. I get an image garbled as seen in the mando app.
You can check it out here ,
http://img337.imageshack.us/my.php?image=mandocq7.jpg

I use logitech Quickcam. Is there any workaround to solve this ?

If it says "Mimas-index" it is the old code again!
I mean to comment out the lines in the source file of the new package (with the combo-box for PAL/NTSC/SECAM/AUTO) which I put at
http://www.wedesoft.demon.co.uk/downloads/mando-1.5.tar.bz2

Sorry I haven't replied. I went ahead and ordered the exact webcam you used for the software. It Works! I just need to study the calibration a bit more to have it detect a pointer of some sort like I saw in your Wiki pictures.

THANKS FOR ALL OF YOUR HELP! I Really Appreciate It and the Software!

Sorry that I don't have V4L2 support yet. I hope I will get around to do it some time.
Currently I am working on "HornetsEye" which will make implementing an application like "kmando" much easier:
http://www.wedesoft.demon.co.uk/hornetseye-api/

After e-mail conversation. Here the KDE-apps posting for the public:

When forcing software rendering the problem disappears:

export LIBGL_ALWAYS_INDIRECT=1
./mando

The problem seems to be a bug in the glDrawPixels method of the ATI driver for GNU/Linux (GL_BGRA colourspace display in this case).