On Friday 05 December 2014 04:05:13 Marius Liebenberg did opine And Gene did reply: > On 2014-12-05 06:01, sam sokolik wrote: > > Finally got some time to take a video.. The implementation is pretty > > embarrassing.. > > > > Small hal file that runs opencv - sets some parameters for the > > houghcircle finder, bluring and some tolerances.. > > > > Gcode program tells the hal component to find a circle > > Hal componant finds circle and sets hal pins of its location > > Gcode program continues and reads the position from the hal pins. > > Gcode program calculates how much to move to center the frame > > > > I am not too impressed with the houghcircle function. I think it > > should work better but might not understand it. > > > > The view is about .001"/pixel the circle is .25" diameter > > > > http://youtu.be/Pe2RACwiEbg > > > > I will post the hal file and gcode program when I get back to it. > > > > sam > > Sam this is looking good. I am watching this thread with keen interest > as I will be doing a pick and place machine in the new year. > > > On 10/07/2014 01:06 PM, sam sokolik wrote: > >> in the future one of my projects is shape recognition. I have been > >> wanting to play with it for a while now. > >> > >> bari on irc mentioned > >> https://github.com/firepick1/FireSight/wiki/firesight > >> which is based on opencv. I installed it and it seems to work as > >> expected. you can use a command line to test pipelines. It uses a > >> c++ library and json for communication. It is mainly used for pick > >> and place machines. > >> > >> I wanted to play with python and found that opencv natively has a > >> python wrapper.. (I may not be using the terms correctly) > >> > >> so I created a small program (mainly a copy and paste from some > >> examples) > >> > >> http://pastebin.com/AUKgyhAh > >> > >> it takes video from input 0 (my web cam) looks for circles that are > >> between 10 and 15 pixels radius and draws a bulls eye. > >> > >> http://electronicsam.com/images/KandT/testing/Screenshot%20from%2020 > >> 14-10-07%2011:27:48.png > >> > >> this is my first real exposure to python. the next step is to see > >> how I can fidldle hal stuff with it.. > >> > >> This seems like it would have some real applications. There are > >> different detectors - circles are just one of many.. > >> > >> sam
The thing that impresses the hell out of me was the response time of the video. I have a setup using emc-camview, and it takes 4 or so seconds for the video to show a stable machine position after a move has been done. So while it can be made to work as a homing device with the align buttons, I think, unless a rotation is needed, that I can do it faster and just as accurately by hand. And yesterday, after I had mounted a jig to clamp work on the table, I ran one of the 3/8" bolts in the end of the clamp into my camera, knocking it loose from its super glued position on the side of the head. So I haven't found a round tuit to reglue it and recalibrate it. And the camera itself was so poorly built that I'll need to super glue it back into its housing. A rather gentle tug on the cable dislodged it months ago. Now that the camera and all is no longer "fixed" in position, I'll fix it again before I remount & recal. So many things to do, and so little time to do it in. :( 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> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
