Laser Harp with OpenLase + OpenCV

Here's a project that I've been meaning to make for a few days and which, thanks to OpenCV and OpenLase, was a snap.

It's pretty simple, there's an independent projection app (OpenLase) and an independent sensing app using a webcam (an EyeToy) and OpenCV with the Python bindings and PyALSA for the MIDI stuff. Just about ~70 lines of code for the projection and ~90 for the sensor portion. Whenever the camera sees a dot move or disappear (from the position it was in when the application is launched), it plays a note.

I've pushed the code to my OpenLase repo at http://git.marcansoft.com/?p=openlase.git . Have fun!

Category:

Science & Technology

Tags:

• laser harp
• laser
• harp
• openlase
• opencv
• eyetoy

[conquerearth]

well done!!!! just out of interest, did my tetris laser harp video inspire you at all for this?

[marcan42]

@conquerearth Yes! Your tetris video was one of the harp videos that I watched and got me interested :)

[nicotrial]

hola tio me podrias recomendar algun libro, web, o lo que utilizes para aprender sobre programacion utilizando camaras para hacer aplicaciones similares a las que haces..(identificar puntos posicion de cajas....) gracias!!

[marcan42]

@nicotrial Yo personalmente he aprendido recientemente sobre esto de OpenCV y la visión por ordenador. Sólo se me ocurre la web de OpenCV en sí, además de por supuesto buscar lo que necesites en concreto en google.

[CharlesBabbageJR]

pretty cool!

probably using a keyboard or harp-like spatial layout would be much more ergonomical / playable :)

[marcan42]

@CharlesBabbageJR Yup, that's my thought too. I'm going to buy a mirror tomorrow so I can place the projector on the floor and bounce it up a a short distance away and see how that works out.

[VManAC]

Props, mate! Fun project!

[ivydigital]

Thank you for sourcing your code, I love building new hardware interfaces, and this looks like so much fun for a next project!

[elchippe]

man you are the best.

[visualdrugs]

awesome! well coded, well played! thanks for sharing your lab experiments

[ArturoDezaPeru]

You're the man!

[MetallicaMichael24]

Im speechless

[smikesmike05]

omgg thats sexy!! no homo...

thanks man you just gave me the greatest motivation ever to continue learning to program! =)

creativity