Subject: Re: [Boost-users] Does anyone know how to detect image offset?
From: Falco Hirschenberger (hirsch_at_[hidden])
Date: 2009-06-09 05:56:06
You can find the offset with subpixel accuracy (useful when you have
antialiased or interpolated images) by using Phase correlation.
http://en.wikipedia.org/wiki/Phase_correlation
You have to apply 3 FFTs, which makes it rather computationally expensive,
but the method is very stable to noise.
Greetings, Falco