Patent ID: 11928798
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. An image processing method, comprising:
performing correction of a misalignment between a plurality of images captured at exposures different from each other;
detecting, as a first detection, an inappropriate area from the plurality of images;
detecting, as a second detection, a feature point for the correction by preferentially using an area other than the inappropriate area of the plurality of images; and
merging the plurality of images on which the correction has been performed,
wherein, in the second detection, the feature point is detected from the area other than the inappropriate area and the inappropriate area, and
in the correction, a weight is assigned to a feature amount of the feature point detected from the inappropriate area to reduce the feature amount, and using a predetermined number of the feature points in decreasing order of the feature amount of the feature point which has been detected from the area other than the inappropriate area and the feature amount of the feature point which has been detected from the inappropriate area and assigned the weight of the feature point.