IPLimage stream from java

 I've got a working attention system trying to merge with myrobotlab but it needs iplimages from opencv and the whole setup is written in c++ need to be able to stream left and right eyes need to know how to stream to a c++ program

GroG's picture

MRL's OpenCV service has the

MRL's OpenCV service has the capability of converting Iplimages to jpgs.  You might want to initially do the transfer using jpg files.

For example :

opencv = Runtime.start('opencv','OpenCV')
sleep(3) # camera warm up

this should save the input frame to a jpg

next step is make your c++ program process the jpg

after that is working instead of saving as individual files, you could us network connections to send the serialized jpgs

MikeTalmage.mt's picture


I was reading about a mjpeg stream maybe I could work with that or maybe get so help finding alts for some of the libraries Iam using the hardest being IPOPT

MikeTalmage.mt's picture


tried the writing jpeg slows framerate down to slow to be useful maybe I can work on jpeg streaming server have to find help though don't know to much about that in java


kyle.clinton's picture



I am currently using a RaspPi streaming video from a Pi Cam connected to it and then processing it on another instances of MRL running on a bigger computer. It may be an easy way to create your jpeg stream.

I will dig back to see who I was discussing it with... I thiink there is a fairly helpful Blog about it.


It looks like the Blog was from astro about setting up uv4l on a pi:


MikeTalmage.mt's picture


Thanks will try tonight

MikeTalmage.mt's picture

still not enough

I tried your way it was faster but might work if i change some things at the expense of a little accuracy let me think...... If I can pass you the pixel coord can you track like that from a server or through arduino but that would require an interrup right