Canon Kabushiki Kaisha

Masaki Fujioka

Norihiro Kawahara

Hidetoshi Wada

Kohei Murayama

Masaharu Yamagishi

Takehito Fukushima

Yoshio Nishioka

An image correction apparatus which improves the accuracy of color matching between image pickup apparatuses. The image correction apparatus performs color matching between the image pickup apparatuses using picked-up images generated by displaying a display image on a display screen and causing the plurality of image pickup apparatuses to shoot the display image. In the image correction apparatus, viewing angle correction values for use in correcting viewing angle characteristics resulting from positions of the plurality of image pickup apparatuses with respect to the display screen to a predetermined viewing angle characteristics are stored in memory, corrected images are generated by subjecting the display image in the picked-up images to correction using the viewing angle correction values, and color correction values for use in color matching between the plurality of corrected images are calculated.

Image correction apparatus that performs color matching between multiple image pickup apparatuses that take image of display apparatus, image pickup system, control method, and storage medium

An image processing apparatus according to the present invention, includes at least one memory and at least one processor function as: a first determining unit configured to determine a first brightness range, which is included in a dynamic range of a first image and is higher than a predetermined brightness; and a first converting unit configured to convert the first image into a second image, of which a dynamic range is narrower than the dynamic range of the first image, based on the determination result by the first determining unit, wherein based on the first brightness range determined by the first determining unit, the first converting unit determines a second brightness range, which is included in the dynamic range of the second image and corresponds to the first brightness range.

Image processing apparatus, display apparatus, image processing method, and non-transitory computer readable medium

A projection apparatus, comprises a projection unit configured to project an image onto a screen including a target image, a switching unit configured to switch to one of a first image for indicating a position deviation between a projection area in which the projection unit projects an image and the target image, and a second image for increasing contrast of the target image, and a control unit configured to control the projection unit so as to project an image in the projection area based on an image to which the switching unit has switched, wherein the first image is an image that has a predetermined relationship with colors of the target image.

Projection apparatus, information processing apparatus, and control methods thereof

A display system includes a master device that displays a master image corresponding to a part of image data, and a slave device that displays a slave image corresponding to another part of the image data. The slave device includes a slave signal generation unit that starts to generate a slave timing signal at a predetermined interval with reference to a timing based on a first instruction received from the master device, a slave communication unit that transmits to the master device a completion notification indicating that a preparation for displaying the slave image is completed, and a slave display unit that displays the slave image in synchronization with the slave timing signal corresponding to a second instruction received from the master device.

Display system

A projector calculates an input-output characteristic for converting a tone value of an input image so as to perform display in a given projectable luminance range in a display absolute luminance range of an input signal, in accordance with the brightness of the projection surface. An output signal is generated from the input signal and projected, based on the calculated input-output characteristic. With the disclosed projector, image data having an input luminance range that is different from the output luminance range can be appropriately displayed.

Growing community of inventors

Chiba, Japan

Masaki Fujioka