Shake correcting apparatus and method thereof in digital photographing apparatus

A computer program product, comprising:

• a computer-readable medium comprising:
• a first set of codes for causing a computer to sense a shake via an inertial sensor comprised in the digital photographing apparatus, and calculating a first shake value;
• a second set of codes for causing a computer to compare the first shake value with a predetermined threshold value and, when the first shake value is greater than the predetermined threshold value, driving an OIS (optical image stabilizer);
• a third set of codes for causing a computer to detect an edge component of an image of a target subject, wherein the image is input via an imaging device of the digital photographing apparatus, and calculating a second shake value from a difference value between edge values of sequential frames of the input image;
• and
• a fourth set of codes for causing a computer to compare the second shake value with the first shake value, and according to a result of the comparing, controlling a shake of the target subject to be corrected.

A shake correcting apparatus of a digital photographing apparatus, the shake correcting apparatus comprising:

• a first shake calculating unit configured to sense a shake via an inertial sensor comprised in the digital photographing apparatus, and to calculate a first shake value;
• an edge detecting unit for configured to detect an edge component of an image of a target subject, wherein the image is input via an imaging device of the digital photographing apparatus;
• a second shake calculating unit configured to calculate a second shake value from a difference value between edge values of sequential frames of the input image;
• and
• a control unit configured to compare the first shake value with a predetermined threshold value and, when the first shake value is greater than the predetermined threshold value, driving an OIS (optical image stabilizer), and configured to compare the second shake value with the first shake value, and according to a result of the comparing, to control a shake of the target subject to be corrected.