iris recognition project in c#

i have a funtion to unwrapped the image but it is in matlab and i couldnt convert it to c#

here is the function:

% this function converts the localized iris image to a normailzed one
% the input arguments are localized image(gray scale),iris radius,Puble radius,Center x,Center y
% the output is the normailized image (gray scale)

function Nor=Normalize(Loc,Ri,Rp,Xo,Yo)
m=round(2*pi*Ri); %m,n are the sizes of the normailized image before resizing
n=Ri-Rp;
Y=ones(1,n);
X=ones(1,m);
for y=1:n-1
k=1;
step=((y+Rp)/(Ri*pi))*2;
for l=Yo-y-Rp:step:Yo+y+Rp
Y(k)=round(l);
Y(m-k+1)=round(l);
X(k)=round(Xo+sqrt((y+Rp)^2-(l-Yo)^2));
X(m-k+1)=round(Xo-sqrt((y+Rp)^2-(l-Yo)^2));
k=k+1;
end
for x=1:m
try
Nor(x,y)=Loc(X(x),Y(x));
catch
Nor(x,y)=0;
end
end
end
Nor=imresize(Nor,[512 64],'bilinear');%resizing the image to have the required dimensions.
Nor=imrotate(Nor,-90);