Patent ID: 11972590
Assignee: CANON KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. An image processing apparatus comprising:
at least one processor or circuit configured to execute a plurality of tasks including:
a first processing task configured to acquire a plurality of first images obtained by capturing an object at first and second viewpoints while changing a polarization angle of light from the object in a first illumination state;
a second processing task configured to acquire:
light intensity information that changes according to the polarization angle using the plurality of first images; and
polarization information of the object based on the acquired light intensity information; and

a third processing task configured to generate a second image of the object that corresponds to a second illumination state different from the first illumination state,

wherein the third processing task:
extracts a partial area of the first images using a sign of a difference of the polarization information at the first viewpoint and the polarization information at the second viewpoint; and
generates the second image by changing a luminance value in the partial area based on information on the second illumination state and the light intensity information.