| 摘要 |
PROBLEM TO BE SOLVED: To enhance detection accuracy to an instruction medium even though a place having color similar to that of the instruction medium exists in a projected image.SOLUTION: An image processor 1 specifies an instruction position in a subject instructed by an instruction medium F. The image processor 1 includes imaging means (camera 13) for imaging the subject, first imaging control means for acquiring a pre-instruction image, second imaging control means for acquiring an on-instruction image, extraction means for specifying the same color area of the color of the same degree of the instruction medium F, and extracting an instruction medium portion from the on-instruction image on the basis of the same color area, determination means for determining whether the instruction medium portion extracted by the extraction means is divided, repair means for repairing a divided portion from a peripheral image in the case that the determination means determines that the instruction medium portion is divided, and specification means for specifying an instruction position on the subject from the shape of the instruction medium portion repaired by the repair means. |
