Method for controlling camera system, electronic device, and storage medium

1. A method for operating an electronic device, the method comprising:

performing initialization of a camera system of the electronic device when the electronic device initiates booting process;

controlling the camera system to operate in a sleep mode upon completion of the initialization, wherein, in the sleep mode, the camera system is unable to capture an image;

displaying a first icon on a display of the electronic device for executing a camera application that uses the camera system;

in response to a user input selecting the first icon, executing the camera application and controlling the camera system to switch to a normal mode from the sleep mode, wherein, in the normal mode, the camera system is ready to capture at least one image;

displaying a screen according to execution of the camera application in the normal mode of the camera system on the display, wherein the screen according to execution of the camera application includes a preview image having a first resolution and a second icon; and

in response to identifying a user input selecting the second icon for capturing an image while the preview image is displayed, controlling the camera system to obtain a second image having a second resolution different from the first resolution.

2. The method of claim 1 , wherein the performing of the initialization comprises:

applying power to the camera system; and

delivering at least one of a program for an operation of the camera system or configuration information of the camera system to the camera system.

3. The method of claim 1 , wherein, when a screen of the display is turned off, the electronic device operates in the sleep mode and then the screen of the display is turned on, then the performing of the initialization is performed.

4. The method of claim 1 , further comprising:

detecting a context associated with the electronic device; and

searching for information associated with the context in a database stored in a memory of the electronic device,

wherein, when the information associated with the context is found in the database, the performing of the initialization is performed.

5. The method of claim 1 , further comprising:

synchronizing switching of at least one element of the camera system between the normal mode and the sleep mode with switching of at least one element of the electronic device between the normal mode and the sleep mode.

6. A non-transitory machine-readable storage medium having recorded thereon a program for executing a method for operating an electronic device, wherein the method comprises:

performing initialization of a camera system of the electronic device, when the electronic device initiates booting process;

controlling the camera system to operate in a sleep mode upon completion of the initialization, wherein, in the sleep mode, the camera system is unable to capture an image;

displaying a first icon on a display of the electronic device for executing a camera application that uses the camera system;

in response to a user input selecting the first icon, executing the camera application and controlling the camera system to switch to a normal mode from the sleep mode, wherein, in the normal mode, the camera system is ready to capture at least one image;

displaying a screen according to execution of the camera application in the normal mode of the camera system on the display, wherein the screen according to execution of the camera application includes a preview image having a first resolution and a second icon; and

in response to identifying a user input selecting the second icon for capturing an image while the preview image is displayed, controlling the camera system to obtain a second image having a second resolution different from the first resolution.

7. An electronic device comprising:

a camera system configured to photograph a subject;

a display configured to display a screen; and

at least one processor configured to:

perform initialization of the camera system, when the electronic device initiates booting process,

control the camera system to operate in a sleep mode upon completion of the initialization, wherein, in the sleep mode, the camera system is unable to capture an image,

display a first icon for executing a camera application that uses the camera system on the screen,

in response to a user input selecting the first icon, execute the camera application and control the camera system to switch to a normal mode from the sleep mode, wherein, in the normal mode, the camera system is ready to capture at least one image,

display a screen according to execution of the camera application in the normal mode of the camera system on the display, wherein the screen according to execution of the camera application includes a preview image having a first resolution and a second icon; and

in response to identifying a user input selecting the second icon for capturing an image while the preview image is displayed, control the camera system to obtain a second image having a second resolution different from the first resolution.

8. The electronic device of claim 7 , wherein the at least one processor is further configured to:

apply power to the camera system, and

deliver at least one of a program for an operation of the camera system and configuration information of the camera system to the camera system.

9. The electronic device of claim 7 , wherein the at least one processor is further configured to provide a second power lower than a first power, which is provided to the camera system in the normal mode, to the camera system in the sleep mode.

10. The electronic device of claim 7 , wherein the at least one processor is further configured to perform the initialization, when a screen of the display is turned off, the electronic device operates in the sleep mode, and then the screen of the display is turned on.

11. The electronic device of claim 7 , wherein the at least one processor is further configured to synchronize switching of at least one element of the camera system between the normal mode and the sleep mode with switching of at least one element of the electronic device between turning on a screen and turning off the screen.

12. The electronic device of claim 7 , wherein the at least one processor is further configured to synchronize switching of at least one element of the camera system between the normal mode and the sleep mode with switching of at least one applications of the electronic device between execution and termination.

13. The electronic device of claim 7 , wherein the at least one processor is further configured to synchronize switching of at least one element of the camera system between the normal mode and the sleep mode with switching of at least one element of the electronic device between the normal mode and the sleep mode.