A control apparatus capable of further improving operability and flexibility of operations related to the image. Images inputted by a network camera are displayed on an digital TV. Operations related to an image display function of the digital TV are performed by a remote controller. Objects in an image inputted by the network camera are recognized. A region related to the objects based on object information obtained by an image recognizing unit is extracted. Region operations for implementing region extraction are allowed, and the extracted region is selected by performing at least one of range control and change of extracted region on the extracted region. Predetermined controls on the extracted region selected by a region selecting unit are performed.