Several type of formal refactoring:

1. someMatrix.data -> someMatrix.prt()
2. someMatrix.data + someMatrix.step * lineIndex -> someMatrix.ptr( lineIndex )
3. (SomeType*) someMatrix.data -> someMatrix.ptr<SomeType>()
4. someMatrix.data -> !someMatrix.empty() ( or !someMatrix.data -> someMatrix.empty() ) in logical expressions

samples/cpp/morphology2.cpp

@@ -59,7 +59,7 @@ static void ErodeDilate(int, void*)
 int main( int argc, char** argv )
 {
     char* filename = argc == 2 ? argv[1] : (char*)"baboon.jpg";
-    if( (src = imread(filename,1)).data == 0 )
+    if( (src = imread(filename,1)).empty() )
         return -1;
 
     help();