Image stabilization method and electronic device therefor
An electronic device includes: a camera; a display; and at least one processor electrically connected to the camera and the display. The at least one processor is configured to: obtain an image data from the camera; output a preview image of the image data on the display, based on a configured magnification; detect at least one object of the preview image in a state in which the configured magnification is greater than a reference magnification; and perform an image stabilization on the preview image, based on the detected at least one object of the preview image.
1 . An electronic device comprising:
a camera;
a display;
memory storing instructions; and
at least one processor operatively or electrically connected with the camera, the display, and the memory;
wherein the instructions are executed by the at least one processor to cause the electronic device to:
obtain image data from the camera;
output a preview image of the image data on the display, based on a configured magnification;
detect at least one object of the preview image in a state in which the configured magnification is greater than a reference magnification;
perform image stabilization on the preview image, based on the detected at least one object of the preview image; and
in a case that a trigger event for reducing a strength of the image stabilization occurs, gradually reduce the strength of the image stabilization to a reference value for a predetermined time in response to the trigger event.
2 . The electronic device of claim 1 , wherein the at least one processor is further configured to increase the strength of the image stabilization by changing a parameter for performing the image stabilization in response to the detection of the at least one object of the preview image.
3 . The electronic device of claim 2 , wherein the at least one processor is further configured to increase the strength of the image stabilization in response to a determination that the at least one object is detected within a specified area of the preview image for the predetermined time.
4 . The electronic device of claim 1 , wherein the at least one processor is further configured to determine a margin area for the image stabilization in response to a user's input.
5 . The electronic device of claim 4 , wherein the margin area is an area obtained by excluding a second area included in the preview image from a first area included in the image data.
6 . The electronic device of claim 1 , wherein the at least one processor is further configured to determine a motion of the electronic device using at least one sensor, and
wherein, in a case that the motion is greater than or equal to a threshold value, the at least one processor is further configured to reduce the strength of the image stabilization.
7 . The electronic device of claim 1 , wherein the trigger event comprises at least one of receiving a user's input for stopping the image stabilization, in a first case where the at least one object is not included in the image data, or in a second case where a preview area falls outside of a margin area.
8 . The electronic device of claim 1 , wherein the at least one processor is further configured to increase the strength of the image stabilization by increasing a coefficient of a low-pass filter disposed in a path for obtaining the image data from the camera.
9 . A method of operating an electronic device, the method comprising:
obtaining image data from a camera;
outputting a preview image of the image data on a display, based on a configured magnification;
detecting at least one object of the preview image obtained by the camera in a state in which the configured magnification is greater than a reference magnification;
performing image stabilization on the preview image, based on the detected at least one object of the preview image; and
in a case that a trigger event for reducing a strength of the image stabilization occurs, gradually reducing the strength of the image stabilization to a reference value for a predetermined time in response to the trigger event.
10 . The method of claim 9 , further comprising increasing the strength of the image stabilization by changing a parameter for performing the image stabilization in response to the detection of the at least one object.
11 . The method of claim 10 , further comprising increasing the strength of the image stabilization in response to a determination that the at least one object is detected within a specified area in the preview image for a for the predetermined time.
12 . The method of claim 9 , wherein the trigger event comprises at least one of receiving a user's input for stopping the image stabilization, in a case where the at least one object is not included in the image data, or in a case where a preview area falls outside of a margin area.