MATLAB: How to generate two random binary images with remove overlapping

random imagerandom number generator

hi,
I am looking to creat two random binary images with remove overlapping. the second image should be random and not contact or overlape with first one.I have did this code: 
clc; clear all;
A=[0 0 0 0 ;...
   0 0 0 0 ;...
   0 0 0 0 ;...
   0 0 0 0 ;...
   0 0 0 0];
N =2;
for k= 1:N   
if k>1
   (A(y0:y1,x0:x1)+1)==[];
   if A>=0
   X(k,:) = randi([1,min(size(A))],1,2);
   Y(k,:) = randi([1,min(size(A))],1,2);
   x0= min(X(k,:));
   x1= max(X(k,:));
   y0= min(Y(k,:));
   y1= max(Y(k,:));
   A(y0:y1,x0:x1)=1;
   xyStart(k,:) = [y0,x0];
   xyEnd(k,:) = [y1,x1];
   end
else
    X(k,:) = randi([1,min(size(A))],1,2);
    Y(k,:) = randi([1,min(size(A))],1,2);
    x0= min(X(k,:));
    x1= max(X(k,:));
    y0= min(Y(k,:));
    y1= max(Y(k,:));
    A(y0:y1,x0:x1)=1;
    xyStart(k,:) = [y0,x0];
    xyEnd(k,:) = [y1,x1];
end
end
this code work with first one but does not work with the seconed image, could you please help me?
one example of expect answer:(Note it are random)
A=[1 1 0 0 ;...
   1 1 0 0 ;...
   0 0 0 0 ;...
   0 1 1 1 ;...
   0 1 1 1];

Best Answer

OK, maybe I could understand your intention.
How about the following way?
nRow = 5;
nCol = 4;
while true
  % Prepare a blank binary image
  A = false(nRow,nCol);
  
  % Put two rectangle randomly
  for kk2 = 1:2
    r = randi(nRow);
    c = randi(nCol);
    h = randi(nRow - r + 1);
    w = randi(nCol - c + 1);
    A(r:r+h-1,c:c+w-1) = true;
  end
  
  % If these two rectangles are separated, then stop the process
  s = regionprops(A);
  if numel(s) == 2
    break;
  end
end
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