Electronic device capable of recognizing object

A method of operating an electronic device, the method comprising:

• selecting three finder pattern candidates among finder pattern candidates to determine a finder pattern of a QR code in a digital image;
• identifying a first length indicating a distance between a first candidate and a second candidate among the selected finder pattern candidates, and a second length indicating a distance between the second candidate and a third candidate;
• and
• determining whether a ratio of the first length and the second length is less than a value selected by the electronic device.

An electronic device comprising:

• a memory that stores a digital image;
• and
• a processor that processes the digital image,
• wherein the processor detects finder pattern candidates;
• extracts contour information of the finder pattern candidates;
• determines one or more finder patterns of a barcode in the digital image among the finder pattern candidates based on at least a piece of the contour information;
• and
• detects an alignment pattern based on at least a part of the one or more finder patterns and the contour information.

An electronic device comprising:

• a memory that stores a digital image;
• and
• a processor that processes the digital image,
• wherein the processor selects three finder pattern candidates among finder pattern candidates;
• identifies a first length indicating a distance between a first candidate and a second candidate among the selected finder pattern candidates, and a second length indicating a distance between the second candidate and a third candidate;
• and
• determines whether a ratio of the first length and the second length is less than a value selected by the electronic device.