Display control apparatus, display control method, and storage medium
A display control apparatus that controls a display of an image to a display device capable of displaying a high dynamic range image includes a determination unit and a control unit. The determination unit is configured to determine a region of interest a user is interested in. The control unit is configured to, on the basis of a relationship between a value of a maximum tone of display and a value of a maximum tone of the region of interest, control a display luminance of the display device such that, in a case where the image is displayed on the display device, a peak luminance of display of the region of interest is made equal to or greater than a peak luminance of a standard dynamic range display and equal to or less than a peak luminance of a high dynamic range display.
1. A display control apparatus that controls a display of an image to a display device capable of displaying a high dynamic range image, the display control apparatus comprising:
at least one processor; and
at least one memory storing instructions that, when executed by the at least one processor, cause the at least one processor to function as:
a determination unit configured to determine a region of interest a user is interested in from an image, and
a control unit configured to, on the basis of a relationship between a value of a maximum tone of display by the display device and a value of a maximum tone of the region of interest, control a display luminance of the display device such that, in a case where the image is displayed on the display device, a peak luminance of display of the region of interest is made equal to or greater than a peak luminance of a standard dynamic range display and equal to or less than a peak luminance of a high dynamic range display.
2. The display control apparatus according to claim 1 ,
wherein the control unit calculates a peak luminance of display of the region of interest on the basis of a ratio of a value of a maximum tone of the region of interest to a value of a maximum tone of display by the display device, a peak luminance of a standard dynamic range display, and a peak luminance of a high dynamic range display.
3. The display control apparatus according to claim 1 ,
wherein the control unit controls a peak luminance of display of the region of interest by correcting a tone characteristic of the image.
4. The display control apparatus according to claim 1 ,
wherein the control unit resets a peak luminance of display of the region of interest in a case where a composition or angle of view of the image is changed.
5. The display control apparatus according to claim 1 ,
wherein the control unit resets a peak luminance of display of the region of interest when a user operation is received.
6. The display control apparatus according to claim 1 ,
wherein the determination unit determines the region of interest by detecting a line-of-sight of a user.
7. The display control apparatus according to claim 1 ,
wherein the determination unit determines the region of interest using a touch panel.
8. The display control apparatus according to claim 1 ,
wherein the determination unit determines the region of interest using an AF frame.
9. The display control apparatus according to claim 1 further comprising a display device.
10. The display control apparatus according to claim 1 further comprising an image capture device configured to capture an image of a subject.
11. A display control method for controlling a display of an image to a display device capable of displaying a high dynamic range image, the method comprising:
determining a region of interest a user is interested in from an image; and
on the basis of a relationship between a value of a maximum tone of display by the display device and a value of a maximum tone of the region of interest, controlling a display luminance of the display device such that, in a case where the image is displayed on the display device, a peak luminance of display of the region of interest is made equal to or greater than a peak luminance of a standard dynamic range display and equal to or less than a peak luminance of a high dynamic range display.
12. A non-transitory computer-readable storage medium storing a program for causing a computer to execute the steps of the display control method for controlling a display of an image to a display device capable of displaying a high dynamic range image, the method comprising:
determining a region of interest a user is interested in from an image; and
on the basis of a relationship between a value of a maximum tone of display by the display device and a value of a maximum tone of the region of interest, controlling a display luminance of the display device such that, in a case where the image is displayed on the display device, a peak luminance of display of the region of interest is made equal to or greater than a peak luminance of a standard dynamic range display and equal to or less than a peak luminance of a high dynamic range display.