Gauge image recognition

[gdargaud]

Hello all, I have an interesting problem. A webcam is filming a gauge, and I want to convert the position of the hand to a numerial value.

I've never done image recognition so I don't know where to start. I know there's an image recognition toolkit with LW/LV, but that's a separate program, right, not a library for CVI ? And does it run on Linux as well ?

Otherwise anybody can recommand a (linux) software and/or library that can do that without too much hassle ?

Thanks.

[National_Burritos]

Hello,

There are vision libraries for CVI (Vision Development Module and Vision Acquisition Software have a C API). However, none of our vision SW is currently supported on Linux. It is possible this may be introduced in the future, but I am not sure when.

If you would want to develop in Windows, what you want to do should be possible.

[gdargaud]

Thanks for the answer, I wasn't sure about the Linux support. Anyway a little bit of thinking an a two-line ImageMagick script can extract the needle info from the image easily (polar transform and peak luminosity search along a line).