Im having trouble registering an aerial photo to an orthophoto. Evertime I try to enter my eq for cpselect, it keeps sayingThe expression to the left of the equals sign is not a valid target for an assignment. Can someone help me out.

 (aerial_points_ortho_points)=cpselects(aerial,light.jpg',...movingpoints,fixedpoints,...'wait',true)
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Error: The expression to the left of the equals sign is not a valid target for an
assignment.

Answer 1

[Shashank]

Hi Austin,

According to the documentation, the function name is cpselect and there are two output arguments which correspond to selectedMovingPoints and selectedFixedPoints .

Refer to this example for more info :

Register an Aerial Photo to an Orthophoto

Hope this helps

Answer 2

[Walter Roberson]

You cannot use () to designate multiple outputs in MATLAB: you need to use []

   [aerial_points_ortho_points] = cpselects('aerial,light.jpg', ...
     movingpoints, fixedpoints, ...
     'wait',true);

In the special case where you only have one output variable, you can leave out the []

   aerial_points_ortho_points = cpselects('aerial,light.jpg', ...
     movingpoints, fixedpoints, ...
     'wait',true);