1. An electronic apparatus comprising: a character detector configured to detect a first character candidate and a second character candidate from an image; a feature detector configured to detect first feature data and second feature data, the first feature data comprising at least character size, color, or line width of the first character candidate, and the second feature data comprising at least character size, color, or line width of the second character candidate; a character string combiner configured to combine the first and second character candidates to form a character string when a degree of coincidence between the first feature data and second feature data at least satisfies a threshold coincidence value; and a controller configured to detect a portion of the character string indicative of an attribute, and to activate a function corresponding to the attribute.