I'm happy to introduce my edition of the Simple Color Picker macro by Stefan Ihringer.
Now it can analyze not just point or 5x5 rectangle, but any selected rectangular area.
You can get Minimum, Maximum as well as Average color value.
To place several pickers on a single image just connect several nodes of the macro one by one.
ColorInspector.jpg 108.73KB 107 downloads
The macro needs Krokodove plugin to be installed