Image correction apparatus, method and medium

摘要

An image correction apparatus, method and medium which can perform color component correction and geometric correction using the property of a projector projecting light of a plurality of color components of an input image at different times is provided. The image correction method includes sequentially projecting light of a plurality of color components of an input image onto a projection surface at different times, acquiring color components of the projected light, and correcting the input image by comparing the acquired color components with the color components of the input image.

主权项

1. An image correction apparatus comprising:
an image projection unit to sequentially project light of a red color component of a first input image, a green color component of the first input image, and a blue color component of the first input image onto a projection surface at different intervals within a predetermined frame of a predetermined duration; an image acquisition unit to acquire, at the different intervals within the predetermined frame, nine color components comprising the projected red color component, an overlapping RG color component between the projected red color component and the projected green color component, an overlapping RB color component between the projected red color component and the projected blue color component, an overlapping GR color component between the projected green color component and the projected red color component, the projected green color component, an overlapping GB color component between the projected green color component and the projected blue color component, an overlapping BR color component between the projected blue color component and the projected red color component, an overlapping BG color component between the projected blue color component and the projected green color component, and the projected blue color component; and an image correction unit to correct the color components or geometry of a second input image based on a comparison of the acquired nine color components with the color components of the first input image.