On Tuesday 26 January 2016 06:44:48 Fox Mulder wrote: > 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. > All my machines are on the wheezy based install. Latest installed python is 2.7.3. But I do see that 3.2.3 is available. Can they co-exist?
Thanks Rainer Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ 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
