DISPLAY CONTROL APPARATUS AND METHOD FOR CONTROLLING THE SAME

• US 20170134642A1
• Filed: 11/08/2016
• Published: 05/11/2017
• Est. Priority Date: 11/10/2015
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yoshikawa, Akio, Ishimaru, Satoshi, Nakagawa, Koichi
• Granted Patent: US 10,205,872 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/04817 using icons graphical or visual programming using iconic symbols G06F8/34
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: G09G 2320/0271 Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
• CPC Class Codes: G09G 2320/0606 Manual adjustment
• CPC Class Codes: G09G 2320/0613 The adjustment depending on the type of the information to be displayed
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: H04N 23/62 Control of parameters via user interfaces
• CPC Class Codes: H04N 23/632 for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
• CPC Class Codes: H04N 23/633 for displaying additional information relating to control or operation of the camera
• CPC Class Codes: H04N 23/64 Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
• CPC Class Codes: H04N 23/667 Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
• CPC Class Codes: H04N 23/71 Circuitry for evaluating the brightness variation
• CPC Class Codes: H04N 23/72 Combination of two or more compensation controls
• CPC Class Codes: H04N 23/73 by influencing the exposure time
• CPC Class Codes: H04N 5/202 Gamma control circuits for controlling camera response irrespective of the scene brightness H04N23/82
• CPC Class Codes: H04N 9/69 for modifying the colour signals by gamma correction controlling camera response for colour signals H04N23/83

Abstract

An apparatus includes a display control unit configured to display a first type of image captured with a first gradation characteristic and a second type of image captured with a second gradation characteristic having a higher gradation quality on a high-luminance side than the first gradation characteristic, and a control unit configured to perform control such that luminance of a display unit is set to second luminance higher than first luminance of a case where the first type of image is displayed, in a case where the second type of image is displayed.

Claims

1. An apparatus comprising:

a display control unit configured to display a first type of image captured with a first gradation characteristic, and a second type of image captured with a second gradation characteristic having a higher gradation quality on a high-luminance side than the first gradation characteristic; and

a control unit configured to perform control such that luminance of a display unit is set to second luminance higher than first luminance of a case where the first type of image is displayed on the display unit, in a case where the second type of image is displayed on the display unit.

2. The apparatus according to claim 1, wherein the control unit performs control such that the luminance of the display unit is set to the first luminance in response to a screen switching from a state in which the second type of image is displayed with the luminance of the display unit set to the second luminance to a state in which a video image that is not the captured image is displayed.

3. The apparatus according to claim 1, wherein in a case where a luminance setting of the display unit is a luminance setting as bright as or brighter than a predetermined value, the control unit performs control such that an output gamma characteristic with which the second type of image is output on the display unit is set to a second output gamma characteristic that enables a low-luminance side to be displayed more brightly than a first output gamma characteristic with which the first type of image is output on the display unit.

4. The apparatus according to claim 3, wherein the predetermined value is the second luminance.

5. The apparatus according to claim 3, wherein the luminance setting is a luminance setting set by a user.

6. The apparatus according to claim 1, further comprising a setting unit configured to set whether to turn on an assist function for visibility of when the second type of image is displayed,

wherein in a case where the assist function is not turned on, the control unit performs control such that the luminance of the display unit is not changed from the first luminance even when the second type of image is displayed.

7. The apparatus according to claim 1, further comprising:

an imaging unit; and

a mode setting unit configured to set a mode to any of a plurality of modes using gradation characteristics different from one another at the time of imaging by the imaging unit, the plurality of modes including at least a first mode using the first gradation characteristic and a second mode using the second gradation characteristic,

wherein in a case where a live view image being captured in the second mode is displayed, the control unit performs control such that the luminance of the display unit is set to brighter luminance than luminance of a case where a live view image being captured in the first mode is displayed.

8. The apparatus according to claim 1, further comprising an acquisition unit configured to acquire a recorded image and attribute information of the image,

wherein based on the acquired attribute information, the control unit performs control such that the luminance of the display unit is set to the second luminance when the image to which the attribute information indicating that the image is the second type of image is added is reproduced.

9. The apparatus according to claim 8, wherein based on the acquired attribute information, the control unit performs control such that when the image to which the attribute information indicating that the image is the second type of image is added is reproduced, a display item indicating that the image is the second type of image is displayed together with the image.

10. The apparatus according to claim 1, wherein when an image display is performed in a multiscreen form in which a plurality of images is displayed on a single screen, the control unit performs control such that even in a case where the second type of image is included in the plurality of images, the luminance of the display unit is not changed from the first luminance.

11. The apparatus according to claim 1, wherein the control unit performs control such that the luminance of the display unit is set to the first luminance in response to the screen switching from a state in which the second type of image is displayed with the luminance of the display unit set to the second luminance to a menu screen where a setting of the display unit is set.

12. The apparatus according to claim 11, wherein when a setting screen, which is provided under a hierarchical level of the menu screen, to be displayed together with the second type of image is displayed, the control unit performs control such that the luminance of the display unit is changed from the first luminance to the second luminance.

13. The apparatus according to claim 1, wherein in a case where the second type of image is displayed with the luminance changed from the first luminance to the second luminance, the control unit performs control such that a display item to be displayed together with the second type of image is drawn with lower brightness.

14. The apparatus according to claim 1, wherein each of the first gradation characteristic and the second gradation characteristic is a gradation characteristic when luminance of an object is converted into a gradation value, and the second gradation characteristic is a gradation characteristic that exhibits a lower gradation quality on an intermediate-luminance to low-luminance side of the object and has a larger number of gradation values allocated to the high-luminance side than the first gradation characteristic.

15. The apparatus according to claim 1, further comprising a processing unit configured to perform any editing processing from among a plurality of kinds of editing processing on an image,

wherein on an editing screen or a confirmation screen for performing first editing processing on the second type of image, the control unit performs control such that the second type of image is displayed with the first luminance without the display unit set to the second luminance, and

wherein on an editing screen or a confirmation screen for performing second editing processing on the second type of image, the control unit performs control such that the second type of image is displayed with the display unit set to the second luminance.

16. The apparatus according to claim 15, wherein the first editing processing is such editing processing that, even in a case where specific attribute information indicating that the image is the second type of image is added to the image before the editing, the specific attribute information is not added to the image after the editing.

17. The apparatus according to claim 15, wherein the first editing processing is at least one of transcoding and editing for combining a plurality of images.

18. The apparatus according to claim 15, wherein in a case where specific attribute information indicating that the image is the second type of image is added to the image before the editing, the second editing processing is such editing processing that the specific attribute information is also added to the image after the editing.

19. The apparatus according to claim 15, wherein the second editing processing is at least one of trimming and copying.

20. The apparatus according to claim 1, further comprising an output unit configured to output an image to an external display apparatus,

wherein when the second type of image is output from the output unit, the control unit performs control such that a guide prompting a user to change luminance of the external display apparatus is output from the output unit together with the second type of image.

21. The display control apparatus according to claim 20, further comprising a detection unit configured to detect whether the external display apparatus is connected to the output unit,

wherein in a case where the external display apparatus is connected to the output unit, the control unit performs control such that the guide prompting the user to change the luminance of the external display apparatus is output from the output unit together with the second type of image.

23. A computer-readable non-transitory storage medium storing a program for causing a computer to function as each of the units of the apparatus according to claim 1.

22. A method for controlling an apparatus, the method comprising:

performing display control of displaying a first type of image captured with a first gradation characteristic and a second type of image captured with a second gradation characteristic having a higher gradation quality on a high-luminance side than the first gradation characteristic; and

performing control such that luminance of a display unit is set to second luminance higher than first luminance of a case where the first type of image is displayed, in a case where the second type of image is displayed.