Correction on dimentions of grabbed frame in Octave

Bug when acquiring frame from stream server solved by reshaping the array passed by sockets.
Hardcoded the dimentions and position of the initial object selection box. Now the octave version can use webcam stream.

bbox/bb_click.m

@@ -26,12 +26,18 @@
     imshow(img);
 end
 text(10,10,'Define bounding box and double click inside.','color','white');
-h = imrect;
-p = wait(h);
-bb = [p(1); p(2);p(1)+p(3); p(2)+p(4)];
+if exist('OCTAVE_VERSION', 'builtin')
+    % while we don't have a imrect equivalent in Octave
+    % use the hardcoded bellow (a centered 200x200 pixels box)
+    bb = [ 640/2-100; 480/2-100; 640/2+100; 480/2+100];
+else
+    h = imrect;
+    p = wait(h);
+    bb = [p(1); p(2);p(1)+p(3); p(2)+p(4)];
+end
 % [c,r,p] = impixel(img);
 % if length(c) ~= 2,
 %     bb = [];
 %     return;
 % end
-% bb = [c(1); r(1); c(2); r(2)];
+% bb = [c(1); r(1); c(2); r(2)];

img/img_get.m

@@ -24,6 +24,7 @@
     else % We don't have the Image Acquisition package, using stream_server
 	if exist('OCTAVE_VERSION','builtin') % from octave
             [ data, count ] = recv (source.socket, 640*480, MSG_WAITALL);
+	    data = reshape (data, [640 480]);
             stream_img = transpose(data);
         else %from Matlab
             stream_img = transpose(fread(source.socket, [640, 480], 'uint8'));