first commit with current lessons

09-29/eigenfaces/showyalefaces.m

@@ -0,0 +1,13 @@
+X=readyalefaces_to_tensor;
+%X = X(:,:,1:4,[12,9,6,1]); %filters out only some faces
+[w h expr ind]=size(X);
+clf;
+for i=1:expr
+    for j=1:ind
+        subplot('position', [(i-1)/expr, (j-1)/ind,1/expr,1/ind]); 
+%        subplot(expr,ind,j+(i-1)*ind);
+        imagesc(X(:,:,i,j));
+        colormap(gray);
+    end
+end
+set(findobj(gcf, 'type','axes'), 'Visible','off')