A method of operating an electronic device is provided. The method includes tracking at least one object included in a plurality of digital images including at least a first image and a second image. The tracking of the object includes determining values of phase correlation between a part of the first image and a part of the second image, determining a position of a peak value among the values of the phase correlation, and determining a variance of the values of the phase correlation according to at least a part of the peak vale.