1. A method for recognizing characters of an image captured using a camera in a mobile terminal, comprising: capturing, by the camera, an image of a signboard; extracting a text area from the captured image of the signboard; recognizing characters from the extracted text area; generating similar characters of up to a predetermined priority level for each of the recognized characters of the extracted text area; acquiring location information of an area within a predetermined range from a current position of the mobile terminal; extracting at least one store name from the location information; generating at least one text by combining the similar characters according to weights; comparing the at least one text with the extracted at least one store name; and outputting a comparison result.