% show image, contours
function showCurveAndPhi(varargin)

I=varargin{1};
if iscell(I)
    I=cell2mat(I);
end

max_range=min(255,max(I(:)));
imshow(I,'initialmagnification',200,'displayrange',[0 max_range]); hold on;

colsty1=['g';'r';'b';'y';'k'];
for k=1:nargin-1
  
    B1=varargin{k+1};
    if size(B1,1)==2 || size(B1,2)==2
       plot(B1(:,1),B1(:,2),colsty1(k),'LineWidth',2);
    else
       contour(B1, [0 0], colsty1(k),'LineWidth',2);
       %contour(B1, [0 0], 'k','LineWidth',1);
    end
end

end