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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.

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austin houston
austin houston 2018-2-11
回答： Walter Roberson 2018-2-14
(aerial_points_ortho_points)=cpselects(aerial,light.jpg',...movingpoints,fixedpoints,...'wait',true)
↑
Error: The expression to the left of the equals sign is not a valid target for an
assignment.

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回答（2 个）

Shashank
Shashank 2018-2-14
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
Walter Roberson
Walter Roberson 2018-2-14
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);

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