Seiko Epson Corporation

Akio Tomotoshi

Toshiki Fujimori

An image processing method includes detecting pointer contact positions trajectories on a display surface, displaying a first image on the display surface, displaying a second image having first and second portions on the display surface using the first image as a background, moving a second image display position on the display surface along the pointer trajectory when a pointer trajectory starting point is included in a display surface area on which the second image is displayed, providing a drawing effect to a first image portion overlapping a second image trajectory when the starting point is included in an area in which the first portion is displayed in the moving the second image display position, and keeping the first image portion display overlapping the second image trajectory when the starting point is included in an area in which the second portion is displayed in the moving the second image display position.

Image processing method and image processing device

An image processing method includes displaying a first screen on a display surface, the first screen including at least a part of a drawing area in which at least one object image drawn by a user is arranged, excluding an area in which at least a part of an object image included in the first screen is arranged from the drawing area when an operation of erasing the at least a part of the object is received, and displaying a reduced screen on the display surface when an operation is received, the reduced screen being obtained by reducing a whole of the drawing area into a size of the display surface.

A method of controlling a projector includes projecting an achromatic area image representing a drawing area in which the projector receives drawing using a pointer on a projection surface at a first luminance at a ratio on the projection surface, the ratio being smaller than or equal to a specific ratio to a maximum luminance at which the projector capable of project an image on the projection surface, detecting a position on the projection surface pointed by the pointer while projecting the area image, determining whether or not the position is included in the drawing area, and displaying, by the projector, an area including at least a part of an outline of the drawing area at a luminance higher than the first luminance when it is determined that the position is included in the drawing area.

Method of controlling projector and projector

An image sharing method for sharing an image between a first information processing device and a second information processing device includes: when a first drawing is executed on a shared layer shared with the second information processing device, causing the first information processing device to transmit a first object generated by the first drawing to the second information processing device; when a second drawing is executed on an unshared layer not shared with the second information processing device, causing the first information processing device not to transmit a second object generated by the second drawing to the second information processing device; and causing the first information processing device to variably control one of a size and a position within the screen of the unshared layer, or both of the size and the position within the screen of the unshared layer.

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Sapporo, Japan

Akio Tomotoshi