Image processing apparatus, imaging apparatus, and image processing method

摘要

An image processing apparatus which estimates a point spread function (PSF) of at least one input image, and the image processing apparatus includes: an S/N ratio estimation unit which estimates an S/N ratio of the input image at each spatial frequency; a restricted range calculation unit which calculates a restricted range that is a range of the spatial frequency in which the frequency component of the input images are restricted and that more likely includes a spatial frequency in which the S/N ratio is lower; a frequency restriction unit which generates a restricted image by restricting a frequency component of the input image within the restricted range; and a PSF estimation unit which estimates the PSF of the input image, using the restricted image.

主权项

1. An image processing apparatus which estimates a point spread function (PSF) of at least one input image, the image processing apparatus comprising:
a non-transitory memory device storing a program; and a hardware processor configured to execute the program and cause the image processing apparatus to function as: an S/N ratio estimation unit configured to estimate an S/N ratio of the input image at each spatial frequency; a restricted range calculation unit configured to calculate a restricted range which more likely includes a spatial frequency in which the S/N ratio is lower, the restricted range being a range in which a frequency component of the input image is restricted, the range being of the spatial frequency; a frequency restriction unit configured to generate a restricted image by restricting a frequency component of the input image within the restricted range; and a PSF estimation unit configured to estimate the PSF of the input image, using the restricted image.