% for POSITIVE PRINT OF IMAGE
% scales a real matrix to [0,255] range,
% and places a border of all black (zeros) around the outside.
% the dimension is increased by 2 each way
%
% Y = border(X); % black border all around
% % so if image is mostly white, you can see its region of support
%
% Y = border(X,2); % double thickness border all around
%
% Y = border(X,3,4); % 3 rows of zeros, 4 cols of zeros;
% % looks nice on a 3by4 image (eg. TV screen size)
function Y = dummy(X,thicknessrow,thicknesscol)
if nargin == 2
thicknesscol = thicknessrow;
end%if
if nargin == 1
thicknesscol = 1;
thicknessrow = 1;
end%if
[M N] = size(X);
rowpad = zeros(thicknessrow,N);
Y = [rowpad;X;rowpad];
colpad = zeros(M+2*thicknessrow,thicknesscol);
Y = [colpad Y colpad];