IMAGE PROCESSING APPARATUS, IMAGE PICKUP APPARATUS, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM FOR ESTIMATING BLUR

摘要

An image processing apparatus includes an acquirer which acquires a blurred image and a generator which acquires a first blur estimation area of at least a part of the blurred image to generate an estimated blur, and the generator determines a second blur estimation area based on a signal variation in the first blur estimation area, generates the estimated blur by performing iterative calculation processing that repeats correction processing and estimation processing, and determines the second blur estimation area having a signal variation larger than the signal variation in the first blur estimation area when the signal variation in the first blur estimation area is smaller than a first threshold value.

主权项

1. An image processing apparatus comprising:
an acquirer configured to acquire a blurred image; and a generator configured to acquire a first blur estimation area of at least a part of the blurred image to generate an estimated blur, wherein the generator is configured to: determine a second blur estimation area based on a signal variation in the first blur estimation area, generate the estimated blur by performing iterative calculation processing that repeats correction processing and estimation processing, the correction processing correcting a blur included in information relating to a signal in the second blur estimation area to generate information relating to a corrected signal, and the estimation processing estimating a blur based on the information relating to the signal and the information relating to the corrected signal, and determine the second blur estimation area having a signal variation larger than the signal variation in the first blur estimation area when the signal variation in the first blur estimation area is smaller than a first threshold value.