An image processing apparatus includes a processing unit configured to perform predetermined detection processing on image data captured with use of an imaging unit for wide-angle imaging, a determination unit configured to determine whether to transmit geometrically converted image data generated by performing a geometric conversion on the captured image data to a reception apparatus, or to transmit the captured image data, without the geometric conversion, to the reception apparatus, and a control unit configured to perform control for performing the geometric conversion on a result of the predetermined detection processing performed on the captured image data without the geometric conversion, in a case where it is determined that the geometrically converted captured image data is to be transmitted to the reception apparatus.