US Patent No. 9,299,147

IMAGE PROCESSING APPARATUS, IMAGE CAPTURING APPARATUS, AND IMAGE PROCESSING METHOD


Patent No. 9,299,147
Issue Date March 29, 2016
Title Image Processing Apparatus, Image Capturing Apparatus, And Image Processing Method
Inventorship Yusuke Shimizu, Kawasaki (JP)
Assignee Canon Kabushiki Kaisha, Tokyo (JP)

Claim of US Patent No. 9,299,147

1. An image processing apparatus comprising:
a processor for executing a program stored in a memory to implement:
acquiring a plurality of images captured under different exposure conditions;
detecting a position shift of an image except a reference image in the plurality images with reference to the reference image,
wherein the reference image is an image serving as a reference in processing for composing the plurality of images; and

correcting the position shift and composing the plurality of images in accordance with a composition ratio calculated based
on brightness of a predetermined image included in the plurality of images,

wherein said processor does not compose a plurality of images according to the composition ratio in a predetermined region
of the reference image including a region in which at least parts of the plurality of images do not overlap, and said processor
uses an image generated from the reference image in the predetermined region.