Multi-projection system, projector, and method of controlling projector

A projector belonging to a multi-projection system configured to combine projection images of a plurality of projectors with each other to thereby display an image including an item selection image used to select an item to be adjusted from a plurality of adjustment items on a projection surface, the projector comprising:

• a processor or circuit programmed to:
• receive an instruction related to an adjustment of the multi-projection system in a situation where the projector belongs to the multi-projection system;
• make a condition of the adjustment item in the item selection image different between a first case where the instruction represents a first adjustment of adjusting the plurality of projectors in a lump and a second case where the instruction represents a second adjustment of individually adjusting the plurality of projectors wherein the adjustment items include a first item which is unavailable in the first adjustment and is available in the second adjustment or wherein the adjustment items include a second item which is unavailable in the second adjustment and is available in the first adjustment;
• and
• exclude one of the adjustment items from the item selection image in the first case, and include the one of the adjustment items in the item selection image in the second case, or exclude one of the adjustment items from the item selection image in the second case, and include the one of the adjustment items in the item selection image in the first case.

A method of controlling a projector belonging to a multi-projection system configured to combine projection images of a plurality of projectors with each other to thereby display an image including an item selection image used to select an item to be adjusted from a plurality of adjustment items on a projection surface, the method comprising:

• receiving an instruction related to an adjustment of the multi-projection system in a situation where the projector belongs to the multi-projection system;
• making a condition of the adjustment item in the item selection image different between a first case where the instruction represents a first adjustment of adjusting the plurality of projectors in a lump and a second case where the instruction represents a second adjustment of individually adjusting the plurality of projectors wherein the adjustment items include a first item which is unavailable in the first adjustment and is available in the second adjustment or wherein the adjustment items include a second item which is unavailable in the second adjustment and is available in the first adjustment;
• and
• excluding one of the adjustment items from the item selection image in the first case, and including the one of the adjustment items in the item selection image in the second case, or excluding one of the adjustment items from the item selection image in the second case, and including the one of the adjustment items in the item selection image in the first case.

A method of controlling a first projector belonging to a multi-projection system configured to combine projection images of a plurality of projectors with each other to thereby display an image including an item selection image used to select an item to be adjusted from a plurality of adjustment items on a projection surface, the method comprising:

• receiving an instruction related to an adjustment of the multi-projection system in a situation where the first projector belongs to the multi-projection system;
• and
• making a condition of the adjustment item in the item selection image different between a first case where the instruction represents a first adjustment of adjusting the plurality of projectors in a lump and a second case where the instruction represents a second adjustment of individually adjusting the plurality of projectors;
• receiving content instruction representing an adjustment content with respect to the adjustment item selected in the item selection image;
• adjusting settings of the first projector based on the adjustment content represented by the content instruction and
• providing, by the first projector, a second projector included in the multi-projection system and different from the first projector with the content instruction in the first case.