Patent ID: 11915385
Assignee: CANON KABUSHIKI KAISHA
Field: nan (nan)
Classification: CPC nan | IPC G

Claim 8:
9. A non-transitory computer-readable storage medium for storing a computer program for causing a computer to:
acquire a local enlargement ratio in an image transformed based on a transformation parameter;
acquire a transformed image which is a captured image transformed based on the transformation parameter;
acquire a sharpening parameter for sharpening the transformed image based on lens information, which indicates resolution of a lens used at a time of capturing the captured image, and the enlargement ratio;
perform sharpening of the transformed image based on the sharpening parameter; and
for each pixel in the transformed image: rotate, based on a polar angle that accords with a pixel position on a captured image that corresponds to this pixel, lens information that accords with an image height that corresponds to this pixel; convert, in accordance with an enlargement ratio that corresponds to this pixel, the rotated lens information; and acquire, as the sharpening parameter of this pixel, the converted lens information.