Am 26.01.2016 um 08:16 schrieb Gene Heskett: >> All the cool kids are using OpenCV >> http://opencv.org/ > > Yee gawds, the git clone is north of 400 MiB! > Nevertheless, it has been built and installed according to the web page > directions, and I have scanned thru all the tuts, but haven't found any > tuts on integrating it with LCNC. And 98% of the tuts discuss fixed > still images. Not moving video which this LCNC scenario is. > I have executed the 3 files it installed in /usr/local/bin, getting the > help screens, none of which mention a v4l2 video source.
Just a few days ago i needed a little program which could overlay a grid over my cheap usb microscope camera. Because i couldn't find any simple program i tried opencv for that purpose. And to be honest it is quite simple to do. Therefor i cloned the latest opencv 3.1.0 git repo and compiled it to use the newly python3 bindings. It works nicely with v4l2 camera devices (like my usb camera) and can process the video. But first i had to realize that opencv works with video like with all other normal picture formats. It gets one frame, processes it and shows the result. Than in a loop it goes to the next frame and so on. So the resulting framerate depends on the processing power of the cpu. My simple test Script for Python 3.x is available at pastebin (http://pastebin.com/jfnpDs72) which should work with most usb cameras. I implemented different things to try out. Even some simple blob detection filter could be de-/activated (see key bindings in code or press h in live video preview). About the integration into linuxcnc i have no clue but i think it shouldn't be too hard to do somehow. Ciao, Rainer ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
