Image capture device, method for generating composite image, and storage medium

A method for generating a composite image comprising:

• performing shading correction on images captured successively;
• selecting a first image from the images on which the shading correction is performed;
• acquiring a difference between the selected first image and a plurality of images other than the first image;
• determining an influence of noise in a peripheral area of the images on which the shading correction is performed, that affects the acquiring the difference;
• controlling a detection accuracy of a moving object in each of the images in accordance with the acquired difference, based on the determination on the influence of the noise;
• and
• generating a composite image in which a plurality of images captured successively are combined, based on the controlled detection accuracy of the moving object.

A non-transitory storage medium storing a computer-readable program that enables a computer controlling an image capture device equipped with an image capture unit to function as units comprising:

• an image capture control unit that controls the image capture unit so as to acquire images successively;
• a correction unit that performs shading correction on the images captured successively by the image capture control unit;
• a selection unit that selects a first image from the images on which the shading correction is performed by the correction unit;
• a difference acquisition unit that acquires a difference between the first image selected by the selection unit and a plurality of images other than the first image;
• a determination unit that determines an influence of noise in a peripheral area of the images on which the shading correction is performed by the correction unit, that affects an acquisition of a difference by the difference acquisition unit;
• a moving object detection accuracy control unit that controls a detection accuracy of a moving object in each of the images in accordance with the difference acquired by the difference acquisition unit, based on a determination result by the determination unit;
• and
• a composite image generation unit that generates a composite image in which a plurality of images captured successively are combined, based on the detection accuracy of the moving object controlled by the moving object detection accuracy control unit.