Abstract: An image projection method includes, projecting a plurality of first markers onto a screen, projecting one or more first sub-markers each having an exterior appearance different from an exterior appearance of each of the plurality of first markers onto the screen, determining positions of the plurality of first markers, determining positions of the first sub-markers, determining a shape of a contour of a first image projected on the screen based on the positions of the plurality of first markers, determining a first line and a first edge of a blend area where the first image and a second image different from the first image are mixed with each other based on the positions of the plurality of first markers and the positions of the first sub-markers, and the first line and the first edge forming the contour of the first image, and projecting the first image onto the screen.

Abstract: An image projection method includes projecting an image including a plurality of adjustment points on a screen, determining positions of the plurality of adjustment points on the screen, determining whether each of a plurality of sides connecting the adjustment points adjacent to each other is a linear line or a curved line, obtaining geometrically-corrected image by performing geometric correction on the image in a range corresponding to an area defined by the plurality of sides including the linear line and the curved line based on the plurality of sides defining the area, and projecting the geometrically-corrected image on the screen.

Abstract: An image projection method includes projecting an image including a plurality of adjustment points on a screen, determining positions of the plurality of adjustment points on the screen, determining whether each of a plurality of sides connecting the adjustment points adjacent to each other is a linear line or a curved line, obtaining geometrically-corrected image by performing geometric correction on the image in a range corresponding to an area defined by the plurality of sides including the linear line and the curved line based on the plurality of sides defining the area, and projecting the geometrically-corrected image on the screen.

Abstract: An image projection method includes, projecting a plurality of first markers onto a screen, projecting one or more first sub-markers each having an exterior appearance different from an exterior appearance of each of the plurality of first markers onto the screen, determining positions of the plurality of first markers, determining positions of the first sub-markers, determining a shape of a contour of a first image projected on the screen based on the positions of the plurality of first markers, determining a first line and a first edge of a blend area where the first image and a second image different from the first image are mixed with each other based on the positions of the plurality of first markers and the positions of the first sub-markers, and the first line and the first edge forming the contour of the first image, and projecting the first image onto the screen.