Digital photographing device, method of controlling the digital photographing device, and computer-readable storage medium

A digital photographing device comprising:

• a high-frequency component removing unit that removes high-frequency components from a first input image and a second input image;
• a differential image calculating unit that calculates differential images between the first input image and the second input image which are output from the high-frequency component removing unit;
• a differential image analyzing unit that calculates the frequency of each of the pixel values of the differential images;
• a target motion range determining unit that determines at least one pixel value of the differential image having a frequency greater than a frequency threshold as a target motion range among the pixel values of the differential image greater than a motion threshold;
• and
• a photographing setting determining unit that determines photographing settings corresponding to the target motion range.

A computer-readable storage medium having embodied thereon a computer program comprising:

• a code programmed to remove high-frequency components from a first input image and a second input image;
• a code programmed to calculate a differential image between the first input image and the second input image from which the high-frequency components are removed;
• a code programmed to calculate the frequency of each of the pixel values of the differential image;
• a code programmed to determine at least one pixel value of the differential image having a frequency greater than a frequency threshold as a target motion range among the pixel value of the differential image greater than a motion threshold;
• and
• a code programmed to determine photographing settings corresponding to the target motion range.