Hello all,
I'm trying to present Gabor patches and i'm using an edited version of
driftdemo to do so. When it gets around to windowing the sinusoid with
a gaussian, it uses the following calculation:
m=exp(-((x/90).^2)-((y/90).^2)).*sin(a*x+b*y+phase);
My question is, what does the "90" refer to? From playing around with
it I realise that it controls the dimensions of the Gaussian, but how
is this quantified? I imagine the units are pixels, but is it the
standard deviation, width-at-half-height, bandwidth, or something else?
Thanks very much in advance, y'all.
Craig
I'm trying to present Gabor patches and i'm using an edited version of
driftdemo to do so. When it gets around to windowing the sinusoid with
a gaussian, it uses the following calculation:
m=exp(-((x/90).^2)-((y/90).^2)).*sin(a*x+b*y+phase);
My question is, what does the "90" refer to? From playing around with
it I realise that it controls the dimensions of the Gaussian, but how
is this quantified? I imagine the units are pixels, but is it the
standard deviation, width-at-half-height, bandwidth, or something else?
Thanks very much in advance, y'all.
Craig