Patent ID: 9551918
Date: 2017-01-24
CPC Classifications: G03B,H04N

Claim:
1. An image processing apparatus comprising: a detection unit configured to detect predetermined coordinates from a first captured image obtained by capturing a projection image projected by a projection unit; a determining unit configured to determine, using a result of the detection of the predetermined coordinates by the detection unit, whether dimensions of the projection image are to be changed; a changing unit configured to change, in a case where the determining unit determines that the dimensions of the projection image are to be changed, the dimensions of the projection image projected by the projection unit to obtain a second captured image based on a resized projection image; and a control unit configured to control a distortion correction parameter to be used for correcting a distortion of a projection image projected by the projection unit, in accordance with a detection result of the predetermined coordinates obtained by the detection unit for the second captured image based on the resized projection image in a case where the detection unit detects the predetermined coordinates from the second captured image.