Description of cpselect for Python 

Navigation Toolbar

navbuttons
Tool how to use
homebutton For all Images, reset to the original view.
backwardforwardbutton Go back to the last or forward to the next view.
backwardforwardbutton Activate the pan/zoom tool. Pan with left mouse button, zoom with right
backwardforwardbutton Zoom with drawing a rectangle

Pick Mode

Change into pick mode to pick up your control points. You have to pick the control points in both images before you can start to pick the next point.

Press the red button below to start pick mode.

Control Point list

Below in the table, all your control points are listed. You can delete one ore more selected control points with the delete button.

Return

If you are finished, please press the return button below. You will come back to wherever you have been.