Image processing device, image processing method, and image processing program

An image processing method comprising:

• deriving a linear structure image indicating a high-frequency linear structure from each of a plurality of tomographic images indicating tomographic planes of an object;
• deriving a feature amount indicating features of the linear structure from the linear structure image;
• selecting at least one tomographic image or high-frequency tomographic image including the linear structure or a predetermined tomographic image or high-frequency tomographic image on the basis of the feature amount for each corresponding pixel in each of the tomographic images or the high-frequency tomographic images indicating high-frequency components of the tomographic images;
• and
• deriving a composite two-dimensional image on the basis of the selected tomographic images or high-frequency tomographic images.

A non-transitory computer-readable storage medium storing an image processing program that causes a computer to execute:

• a procedure of deriving a linear structure image indicating a high-frequency linear structure from each of a plurality of tomographic images indicating tomographic planes of an object;
• a procedure of deriving a feature amount indicating features of the linear structure from the linear structure image;
• a procedure of selecting at least one tomographic image or high-frequency tomographic image including the linear structure or a predetermined tomographic image or high-frequency tomographic image on the basis of the feature amount for each corresponding pixel in each of the tomographic images or the high-frequency tomographic images indicating high-frequency components of the tomographic images;
• and
• a procedure of deriving a composite two-dimensional image on the basis of the selected tomographic images or high-frequency tomographic images.