Gabor Phase ?? my values are too small - matlab

Question

Hi every one >> hope you all are doing fine
I wanted to ask you about calculating the phase values for an image ,, you see I used the Gabor wavlet like so :
k = ( Kmax / ( f ^ v ) ) * exp( 1i * u * pi / 8 );% Wave Vector
kn2 = ( abs( k ) ) ^ 2;
GW = zeros ( R , C );
for m = -R/2 + 1 : R/2
for n = -C/2 + 1 : C/2
GW(m+R/2,n+C/2) = ( kn2 / Delt2 ) * exp( -0.5 * kn2 * ( m ^ 2 + n ^ 2 ) / Delt2) * ( exp( 1i * ( real( k ) * m + imag ( k ) * n ) ) - exp ( -0.5 * Delt2 ) );
end
end
I=imread('a.pgm');
Myimage=conv2(I,double(GW),'same');
then I called the image and the filter with different orientations and scales and stored the phase in P then I wanted to quantize it with rang 4 i:
close all;
clear all;
clc;
% Parameter Setting
R = 32;
C = 32;
Kmax = pi;
f = sqrt( 2 );
Delt = 2 * pi;
Delt2 = Delt * Delt;
% Show the Gabor Wavelets
for v=1:7 %v = 1 : 7
for u = 1:5 % u= 1: 5
[GW,Myimage]= GaborWavelet ( R, C, Kmax, f, u, v, Delt2 ); % Create the Gabor wavelets
figure;
subplot( 5, 8, v * 7 + u ),imshow ( real( GW ) ,[]); % Show the real part of Gabor wavelets
end
figure ;
subplot( 1, 5, v + 1 ),imshow ( abs( GW ),[]); % Show the magnitude of Gabor wavelets
end
%clear I;
R=real(GW);
I=imag(GW);
M=abs(Myimage);
P=atan(imag(Myimage)/real(Myimage)); <<<< is this even right ??
%P=atan(I/R);
save P P;
[xx,yy] = size (P);
DATA =zeros(size(P));
for i=1:48
for j=1:48
for zz=1:3
if (360* zz/4) <= abs(P(i,j))&& abs(P(i,j))<(360*(zz+1)/4)
DATA(i,j)=zz ; end;
end;
end;
end;
save DATA DATA ;
But the data is so small like : -1.49279186693682 1.50990968797986 -1.39225915272978 0.966151874072431
which leads to quantized value of 0 >> Where did I go wrong

Answer 1

I think values seem small because they are given in radians and you expect them in degrees. As for getting the magnitude and angle of a complex number, take a look at http://www.mathworks.fr/fr/help/matlab/ref/angle.html.
I quote:
"For complex Z, the magnitude R and phase angle theta are given by
R = abs(Z)
theta = angle(Z)"
Z would be your GW.
Hope this helps!