Image projection system adjustment necessity determination method, image projection system, and image projection control device

摘要

PROBLEM TO BE SOLVED: To determine whether or not it is necessary to adjust each of a plurality of projectors performing stack projection. SOLUTION: This is a method for determining adjustment necessity of an image projection system 1 in which a first projector 200A, a second projector 200B, and a third projector 200C perform stack projection and project an image on a screen SC, and the first timing T1. Then, the first image P1 generated by the camera 300 taking an image of the area including the screen SC is acquired, and the second image P2 generated by the camera 300 taking an image of the area including the screen SC at the second timing T2. The projection state of the first projector 200A at the first timing T1 is different from the projection state of the second projector 200B and the third projector 200C, and the color values of the first image P1 and the second image P2 are different from each other. When the difference is equal to or greater than the threshold value, it is determined that the first projector 200A needs to be adjusted. [Selection diagram] FIG. 8