Display correction apparatus, program, and display correction system
Display characteristics are calculated using a first captured image for determining ambient light characteristics and a second captured image including the ambient light characteristics and the display characteristics by removing the ambient light characteristics from the second captured image, and display correction is performed based on the display characteristics. This can provide a device that saves time and effort such as moving a color-measurement device when correcting the display characteristics of one or more display devices and that is able to perform display configuration even if a large portion is illuminated by ambient illumination.
1. A display correction apparatus for performing display correction of a display device having a display screen on which an image is displayable, comprising:
ambient light characteristic calculation means for calculating ambient light characteristics from a first captured image of the display screen obtained when the display device is in an ambient light measurement mode;
under-ambient-light display characteristic calculation means for calculating display characteristics of the display device under ambient light from a second captured image of the display screen obtained when the display device is in a normal mode;
display characteristic calculation means for calculating display characteristics of the display device by removing the ambient light characteristics from the display characteristics of the display device under ambient light; and
display correction means for performing display correction based on the display characteristics of the display device, wherein
the ambient light measurement mode includes at least one of turning the display device off, turning a backlight of the display device off, or presenting a first display image, and
the first display image is a black image.
2. The display correction apparatus according to claim 1 , wherein the normal mode is a mode in which the display device presents a second display image.
3. The display correction apparatus according to claim 1 , wherein the ambient light characteristics are calculated, based on luminance or chromaticity distribution information, from the first captured image.
4. A non-transitory computer readable medium that stores a program for causing a computer, which performs display correction of a display device having a display screen on which an image is displayable, to execute:
an ambient light characteristic calculation function of calculating ambient light characteristics from a first captured image of the display screen obtained when the display device is in an ambient light measurement mode;
an under-ambient-light display characteristic calculation function of calculating display characteristics of the display device under ambient light from a second captured image of the display screen obtained when the display device is in a normal mode;
a display characteristic calculation function of calculating display characteristics of the display device by removing the ambient light characteristics from the display characteristics of the display device under ambient light; and
a correction function of performing display correction based on the display characteristics of the display device, wherein
the ambient light measurement mode includes at least one of turning the display device off, turning a backlight of the display device off, or presenting a first display image, and
the first display image is a black image.
5. A display correction system comprising an image capture device, a display device having a display screen on which an image is displayable, and a display correction apparatus that performs display correction of the display device, wherein
the image capture device
transmits to the display correction apparatus a first captured image of the display screen obtained when the display device is in an ambient light measurement mode, and
transmits to the display correction apparatus a second captured image of the display screen obtained when the display device is in a normal mode, and
the display correction apparatus
calculates ambient light characteristics from the first captured image received from the image capture device,
calculates characteristics of the display device under ambient light from the second captured image received from the image capture device,
calculates display characteristics of the display device by removing the ambient light characteristics from the display characteristics of the display device under ambient light, and
performs display correction of the display device based on the display characteristics of the display device, wherein
the ambient light measurement mode includes at least one of turning the display device off, turning a backlight of the display device off, or presenting a first display image, and
the first display image is a black image.