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

Claim 11:
12. An image processing method performed by an image processing apparatus, the method comprising:
acquiring a local enlargement ratio in an image transformed based on a transformation parameter;
acquiring a transformed image which is a captured image transformed based on the transformation parameter;
acquiring 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;
performing sharpening of the transformed image based on the sharpening parameter; and
for each region in the transformed image, acquiring as the sharpening parameter of the region, lens information which is obtained by rotating, based on a polar angle that accords with a pixel position on a captured image that corresponds to a representative pixel in the region, lens information that accords with an image height that corresponds to the representative pixel and then converting the rotated lens information in accordance with an enlargement ratio that corresponds to the representative pixel.