IMAGE PROCESSING APPARATUS, IMAGING APPARATUS COMPRISING THE SAME, AND IMAGE PROCESSING METHOD

摘要

An image processing apparatus performs image processing on image data obtained by using an imaging element comprising a plurality of pixels which comprise a first pixel and a second pixel, wherein two different types of exposure times are applied between the first pixel and the second pixel. A blur amount estimation unit estimates an image blur amount. An exposure time difference calculation unit calculates an exposure time difference. A mixing ratio calculation unit determines a first ratio using a light amount detected by the first pixel to be a target and a second ratio using a light amount detected by the second pixel positioned around the first pixel based on the exposure time difference and the image blur amount. A correction unit corrects the image data based on the image blur amount, the exposure time difference, the first ratio, and the second ratio.

主权项

1. An image processing apparatus which performs image processing on image data obtained by using an imaging element comprising a plurality of pixels which comprise a first pixel being a functional pixel with a focus detection function and a second pixel being a non-functional pixel, which is without the focus detection function and is a pixel other than the functional pixel, wherein two different types of exposure times are applied between the functional pixel and the non-functional pixel, the image processing apparatus comprising:
a blur amount estimation unit which estimates an image blur amount present in the image data; an exposure time difference calculation unit which calculates an exposure time difference, the exposure time difference being a difference between an exposure time of the first pixel and an exposure time of the second pixel included in the image data; a mixing ratio calculation unit which, based on the exposure time difference and the image blur amount, determines a first ratio using a light amount detected by the first pixel to be a target and a second ratio using a light amount detected by the second pixel positioned around the first pixel; and a correction unit which corrects the image data based on the image blur amount, the exposure time difference, the first ratio, and the second ratio.