| CPC H04N 9/3147 (2013.01) | 10 Claims |
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1. A method of controlling a projector comprising:
performing tiling projection in a first area and a second area of a projection surface by projecting image light beams in the first area by a first projector and a first projector group including one or more projectors, and projecting image light beams in the second area by a second projector group including two or more projectors;
selecting either one of first processing of adjusting luminance of a light source of the first projector group in two or more times in a first period based on at least one of a luminance variation of an input image and peripheral luminance of the projection surface and second processing of adjusting the luminance of the light source of the first projector group at a time in a second period shorter than the first period when projection by the first projector stops;
deciding a first adjustment amount of adjusting output of the light source of the first projector group so that luminance of the first area in which the image light beams of the first projector group are projected coincides with luminance of the second area in which the image light beams of the second projector group are projected when the projection by the first projector stops;
performing first adjustment processing of applying a second adjustment amount smaller than the first adjustment amount to the first projector group when the first processing is selected;
projecting, by the first projector group, the image light beams after performing the first adjustment processing;
performing second adjustment processing of applying a third adjustment amount which is no larger than a difference between the first adjustment amount and the second adjustment amount to the first projector group after the projecting the image light beams by the first projector group; and
projecting, by the first projector group, the image light beams after performing the second adjustment processing.
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