% scale a given contour based on a center and widow size

function   Ct=scaleContour(C,cnt,M)

% C : input contour

% cnt : center

% M   : window size

Ctx=C(:,1)-cnt(1)+M/2+.5;

Cty=C(:,2)-cnt(2)+M/2+.5;

Ct=[Ctx,Cty];

end