Processing 1.0 - Processing Discourse

orange_dot

Webcam
Apr 26^th, 2005, 5:37pm

hi,

i want to use a webcam to track videoinformation. I want to use JMyron Plugin to realise that, but i get this error message:

Usage: java [-options] class [args...]
(to execute a class)
or java -jar [-options] jarfile [args...]
(to execute a jar file)

where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.

-cp -classpath <directories and zip/jar files separated by ;>
set search path for application classes and resources
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version and exit
-showversion print product version and continue
-? -help print this help message
-X print help on non-standard options
-ea[:<packagename>...|:<classname>]
-enableassertions[:<packagename>...|:<classname>]
enable assertions
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
disable assertions
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions

Iam using Processing 0.69 and java 1.4

Thanks for answers

Steffen Klaue

infinity.lab

koomkoom

Re: Webcam
Reply #1 - Apr 26^th, 2005, 7:18pm

Hello orange_dot!!!
I am looking for answers on the same topic!!!!
I am using the new processing 0085 Beta and came across the Myron.
(platform:windows 2000 java 1.5)

Now I have installed all the video components that should be used with a regular movie capture - and it works - so my system is ready for webcam capture and manipulation.
However I cannot make Myron work - I think it works only on previous versions of processing, and I think most of my problem is that the myron components are placed in the wrong place. I know the myron plugin was created on 2004 - and that it reffers to older proccesing versions.
Actually I do not know whether the malfunction is caused by incompatibility or because of processing not finding the correct dll's.
Do you know something I don't, orange_dot??
Or anyone else...
Thank you

REAS

Re: Webcam
Reply #2 - Apr 26^th, 2005, 8:25pm

I recommend writing to the Myron team directly. Myron is a contributed library and I don't think they often look at this board. If you find answers, please post them here for others to learn from.

Thinking a bit more...
1. If you are using 69, please upgrade to using the 85+ (BETA)
2. I don't think Myron has been modified to work with the (BETA) yet. Please try using the Capture class from the Video Library.
http://processing.org/reference/libraries/video/

rgovostes Junior Member Offline Posts: 76	Re: Webcam Reply #3 - Apr 27^th, 2005, 10:47pm I submitted a bug report to Myron about compatibility with 0085. Hopefully they will respond soon.

philworthy

Re: Webcam
Reply #4 - May 20^th, 2005, 11:22pm

fyi.

I'm using eclipse, have imported processing.core.* and created a class that extends PApplet. I've managed to use JMyron, with a few quirks.. It seems to get an image and can recognise globs, though spiting out pixel values doesnt work properly (sends out an int that pixels[] doesnt like)... Anyway, there is hope for those who really want to do it with the beta until the JMyron crew get a new version out. Will post again if I find out more. Unfortunately I couldnt get OpenGL working (which is the reason I'm tryng the beta in the first place). Can't win em all I guess.. -p

~~>

st33d

Re: Webcam
Reply #5 - May 22^nd, 2005, 4:09pm

I've got around the whole JMyron problem by using v3ga's blob detection library inside my code. The blobDetection class is reasonably isolated so it's fairly easy to extract data from it once you've played around with for a while.

Original:

http://www.v3ga.net/show.php?id=12&type=0

Updated for Beta:

http://www.robotacid.com/PBeta/blobV3ga.pde

v3ga has already released a library in the reference section that does what the above code does and more. Still, the code above is simple enough to sift through and get a feel for what's going on and come up with new ideas on how this stuff can be implemented.

Josh Nimoy

Re: Webcam
Reply #6 - May 23^rd, 2005, 3:36pm

A new version of JMyron is now available for public download , and it works with Processing 0090. Please download this and try it out, and post more bugs to the system is you're having trouble getting it to run. I've only actually tested it on Processing 0090 so far.

On that note, Java users in Eclipse will now be able to properly import JMyron because it's in its own namespace.

http://webcamxtra.sourceforge.net

neuston

Re: Webcam
Reply #7 - May 23^rd, 2005, 8:08pm

Josh Nimoy wrote on May 23^rd, 2005, 3:36pm:

A new version of JMyron is now available for public download , and it works with Processing 0090. Please download this and try it out, and post more bugs to the system is you're having trouble getting it to run. I've only actually tested it on Processing 0090 so far.

On that note, Java users in Eclipse will now be able to properly import JMyron because it's in its own namespace.

http://webcamxtra.sourceforge.net

Thank a lot, Josh Nimoy

rosina YaBB Newbies Offline Posts: 1	Re: Webcam Reply #8 - Jun 13^th, 2005, 12:37am Hello, Does anyone know about this problem? Can I get some help please? I downloaded new version of jmyron for processing 0090, and followed installation instruction, but it seems it is not working. When I run 'Myron_simpleCamera' example, this error message appeared in the window. java.lang.UnsatisfiedLinkError: native_start Thank you.

dafdaf YaBB Newbies Offline Posts: 9	Re: Webcam Reply #9 - Jun 13^th, 2005, 7:19pm I'm using JMyron Beta 2.3 together with processing 91. It works quite fine - at least in OSX.