Provided is an electronic device including a display to output an image, a parallax optical element configured to provide light corresponding to the image to a plurality of viewpoints, an input interface configured to receive an input to calibrate the parallax optical element by a user who observes a pattern image from a reference viewpoint among the plurality of viewpoints, and a processor configured to output the pattern image generated by rendering a calibration pattern toward the reference viewpoint, adjust at least one of a pitch parameter, a slanted angle parameter, and a position offset parameter of the parallax optical element based on the input, and output, by the display, the pattern image adjusted by re-rendering the calibration pattern based on an adjusted parameter.

A three-dimensional (3D) image providing method and apparatus is provided. The 3D image providing method includes detecting an eye location of a viewer and providing a 3D image based on the detected eye location, in which the providing of the 3D image includes determining an image pixel value corresponding to a display pixel of a display panel, determining a luminance weight corresponding to the display pixel based on a ray direction of a ray output from the display pixel and the detected eye location, applying the luminance weight to the image pixel value corresponding to the display pixel, and outputting, through the display pixel, the image pixel value with the luminance weight applied thereto.

A three-dimensional (3D) image providing method and apparatus is provided. The 3D image providing method includes detecting an eye location of a viewer and providing a 3D image based on the detected eye location, in which the providing of the 3D image includes determining an image pixel value corresponding to a display pixel of a display panel, determining a luminance weight corresponding to the display pixel based on a ray direction of a ray output from the display pixel and the detected eye location, applying the luminance weight to the image pixel value corresponding to the display pixel, and outputting, through the display pixel, the image pixel value with the luminance weight applied thereto.

Disclosed is an apparatus and method of correcting 3D image distortion. A method of correcting 3D image distortion according to the present disclosure includes: receiving an input image that contains a predetermined first pattern; extracting a characteristic value related to the first pattern from the input image; and updating the input image on the basis of the extracted characteristic value.

A liquid crystal display device which is an image display device for displaying a stereoscopic image includes two correction tables (a nighttime correction table and a daytime correction table) storing correction values corresponding to combinations of a gradation value of a processing target pixel and a gradation value of an adjacent pixel, a correction table selection unit configured to select one of the two correction tables depending on conditions, and gradation value correction units (a right-image gradation value correction unit and a left-image gradation value correction unit) configured to correct the gradation value of the processing target pixel based on the correction table selected by the correction table selection unit.

A liquid crystal display device which is an image display device for displaying a stereoscopic image includes two correction tables (a nighttime correction table and a daytime correction table) storing correction values corresponding to combinations of a gradation value of a processing target pixel and a gradation value of an adjacent pixel, a correction table selection unit configured to select one of the two correction tables depending on conditions, and gradation value correction units (a right-image gradation value correction unit and a left-image gradation value correction unit) configured to correct the gradation value of the processing target pixel based on the correction table selected by the correction table selection unit.

An information processing apparatus (1) includes a viewpoint position detection unit (15) and a correction processing unit (11). The viewpoint position detection unit (15) detects a viewpoint position (PS) of an observer. The correction processing unit (11) detects a gaze point (GP) on a viewpoint image (VPI) corresponding to the viewpoint position (PS). The correction processing unit (11) blurs an outer edge of the viewpoint image (VPI) away from the gaze point (GP) in a parallax direction.

An information processing apparatus (1) includes a viewpoint position detection unit (15) and a correction processing unit (11). The viewpoint position detection unit (15) detects a viewpoint position (PS) of an observer. The correction processing unit (11) detects a gaze point (GP) on a viewpoint image (VPI) corresponding to the viewpoint position (PS). The correction processing unit (11) blurs an outer edge of the viewpoint image (VPI) away from the gaze point (GP) in a parallax direction.

There is provided an image processing device, an image projection device, a control device, an information processing device, an image projection system, an image processing method, and a program that make it possible to suppress a reduction in a subjective image quality. On the basis of each frame image of a moving image, a time during which a projection image of each frame image of the moving image is viewable by a user is controlled. For example, a controller controls the time during which the projection image is viewable by the user, to cause a difference between the moving image and the projection image due to a reduction in a luminance and a difference between the moving image and the projection image, which increases due to an increase in the time during which the projection image is viewable by the user, to be suppressed.

There is provided an image processing device, an image projection device, a control device, an information processing device, an image projection system, an image processing method, and a program that make it possible to suppress a reduction in a subjective image quality. On the basis of each frame image of a moving image, a time during which a projection image of each frame image of the moving image is viewable by a user is controlled. For example, a controller controls the time during which the projection image is viewable by the user, to cause a difference between the moving image and the projection image due to a reduction in a luminance and a difference between the moving image and the projection image, which increases due to an increase in the time during which the projection image is viewable by the user, to be suppressed.