Wearable device for controlling displaying of visual object corresponding to external object and method thereof

A wearable device, comprising:

• a camera;
• a display;
• a processor;
• and
• memory storing instructions that, when executed by the processor, cause the wearable device to:
• display, via the display, a first image frame obtained by the camera;
• identify a first visual object among a plurality of visual objects in the first image frame;
• based on identifying the first visual object among the plurality of visual objects in a first image frame obtained by the camera, identify a second visual object associated with the first visual object;
• after the second visual object is identified, obtain a second image frame via the camera;
• modify at least a portion of the second image frame in which at least one of other visual objects of the plurality of visual objects different from the first visual object and the second visual object is removed;
• and
• display, via the display, the second image frame including the modified portion.