Image processing apparatus, image processing method, and image processing program

An image processing method executed by a processor included in an image processing apparatus, the image processing method comprising:

• acquiring first image data obtained by imaging a space with an imaging apparatus;
• determining a first position that is in the space and corresponds to a position of a virtual projection surface and a second position serving as a reference for an orientation of the virtual projection surface in the space;
• determining the orientation of the virtual projection surface based on a positional relationship between the first position and the second position and generating virtual projection surface data representing the virtual projection surface;
• generating second image data representing a second image in which the virtual projection surface is displayed on a first image represented by the first image data, based on the first image data and on the virtual projection surface data;
• and
• outputting the second image data to an output destination.

A non-transitory computer-readable storage medium that stores an image processing program for causing a processor included in an image processing apparatus to execute a process comprising:

• acquiring first image data obtained by imaging a space with an imaging apparatus;
• determining a first position that is in the space and corresponds to a position of a virtual projection surface and a second position serving as a reference for an orientation of the virtual projection surface in the space;
• determining the orientation of the virtual projection surface based on a positional relationship between the first position and the second position and generating virtual projection surface data representing the virtual projection surface;
• generating second image data representing a second image in which the virtual projection surface is displayed on a first image represented by the first image data, based on the first image data and on the virtual projection surface data;
• and
• outputting the second image data to an output destination.