Display system, control device, control method for display system, and computer program

A control method for a display system including a projector and a control device coupled to the projector, the control method comprising:

• applying, by the projector, distortion correction to input image data to generate corrected image data;
• projecting, by the projector, a corrected image based on the corrected image data;
• applying, by the control device, processing including the distortion correction to reference image data indicating a reference image including a plurality of lattice points based on correction data indicating content of the distortion correction acquired from the projector to generate preview image data indicating a preview image,
• displaying, by the control device, the preview image based on the preview image data,
• accepting, by the control device, enlarging operation for the preview image, selecting operation for selecting a lattice point set as a correction target among a plurality of lattice points included in the preview image to be enlarged, and changing operation for changing a position to the lattice point to be selected;
• and
• generating, by the control device, a changing command for changing the distortion correction according to the changing operation and transmitting the changing command to the projector.

A non-transitory computer-readable storage medium storing a program of a control device coupled to a projector that applies distortion correction to input image data to generate corrected image data and projects a corrected image based on the corrected image data, the control device including a display section, the program causing the control device to function as:

• a generating section configured to apply, based on correction data indicating content of the distortion correction acquired from the projector, processing including the distortion correction to reference image data indicating a reference image including a plurality of lattice points to generate preview image data indicating a preview image;
• a display control section configured to cause the display section to display the preview image based on the preview image data;
• an accepting section configured to accept enlarging operation for the preview image, selecting operation for selecting a lattice point set as a correction target among a plurality of lattice points included in the preview image to be enlarged, and changing operation for changing a position to the lattice point to be selected;
• and
• a transmitting section configured to generate, according to the changing operation, a changing command for changing the distortion correction and transmit the changing command to the projector.