[chbot] Vision processing side project.

Carl Ranson chchrobotics@lists.linuxnut.co.nz
Tue, 22 May 2007 23:55:58 +1200

Hi Team.

I've been doing a lot of study on computer vision and one of the things 
I've been reading up on is a bit of maths called "the hough transform". 
Basically it can be used to detect the position and orientation of lines 
in an image.

As an example, I'm working on some code for barcodes via a webcam.
The image here: http://tinyurl.com/32k75t shows the work in progress app 
for doing this.
The top right shows the barcode position and angle detected from the 
webcam input.
The bottom right picture is the "hough space". Bright points correspond 
to the stronger sets of lines.

I'd be happy to demo this stuff at the next meeting if people are