BACKGROUND

1) Field

Certain embodiments described below relate to an electronic device for changing the magnification of an image using a plurality of cameras, and a method therefor.

2) Description of Related Art

Recently, with the development of digital technology, various types of electronic devices, such as a mobile communication terminal, a smart phone, a tablet PC, an electronic notebook, a personal digital assistant, and a wearable device, have come to be widely used. The electronic device may include one or more cameras for capturing an image and/or a video.

The above information is presented as background information only to assist with an understanding of the disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure.

SUMMARY

Each camera in the electronic device have include its own field-of-view (FOV). If multiple FOVs for a plurality of cameras at least partially overlap one another, and the supported magnification ranges of each cameras differ, then during adjustment of magnification, the electronic device could switch between the available cameras to achieve the desired magnification. However, there may be delays in switching between the cameras due to the time needed for activation of the camera.

The technical subjects pursued in the disclosure are not limited to the above mentioned technical subjects, and other technical subjects which are not mentioned may be clearly understood, through the following descriptions, by those skilled in the art of the disclosure.

According to certain embodiments, an electronic device may include: display; a plurality of cameras; a memory for storing instructions; and at least one processor operably coupled with the display, the plurality of cameras, and the memory, the instructions executable by the at least one processor to cause the electronic device to display, on the display, a preview of a first image acquired using a first camera from among the plurality of cameras, receive a first input while the preview is displayed, wherein the first input is received before reception of a second input adjusting a magnification level of the preview, in response to receiving the first input, activate a second camera from among the plurality of cameras, receive the second input for adjusting the magnification of the preview when a second image, distinct from the first image, is acquired using the activated second camera, and display the preview, based on at least a part of the second image and at least partially based on receiving the second input.

A method of an electronic device according to certain embodiments may include: displaying, on a display of the electronic device, a preview of a first image acquired from a first camera among a plurality of cameras of the electronic device, receiving a first input while the preview is displayed, wherein the first input is received before reception of a second input adjusting a magnification level of the preview, in response to receiving the first input, activating a second camera among the plurality of cameras, receiving the second input adjusting the magnification level of the preview while a second image, distinct from the first image, is acquired using the activated second camera, and displaying the preview, based on at least a part of the second image and at least partially based on receiving the second input.

An electronic device and a method therefor according to certain embodiments may activate a camera before receiving user input for adjusting a magnification and thus prevent the user from noticing a delay attributable to activation of the camera, so as to provide enhanced usability.

The effects which can be acquired by the disclosure are not limited to the above described effects, and other effects that have not been mentioned may be clearly understood by those skilled in the art from the following description.

