Image processing apparatus, image processing method, and storage medium

An image processing method of correcting an influence of atmospheric turbulence by using a plurality of pieces of image data captured temporally successively, comprising:

• obtaining a plurality of pieces of partial image data corresponding to images of a processing target area in the plurality of pieces of image data;
• transforming the obtained plurality of pieces of partial image data into Fourier spectra;
• estimating a phase containing a high-frequency component by using phases of low-frequency components in the plurality of Fourier spectra obtained by the transform;
• on a basis of a result of the estimation in the estimating and reference data determined on a basis of the pieces of partial image data obtained in the obtaining, correcting the result of the estimation in the estimating on at least one of the pieces of partial image data;
• and
• generating a piece of output image data corresponding to the pieces of image data on a basis of the result corrected in the correcting.

A non-transitory computer readable storage medium storing a program which performs an image processing method of correcting an influence of atmospheric turbulence by using a plurality of pieces of image data captured temporally successively, the method comprising:

• obtaining a plurality of pieces of partial image data corresponding to images of a processing target area in the plurality of pieces of image data;
• transforming the obtained plurality of pieces of partial image data into Fourier spectra;
• estimating a phase containing a high-frequency component by using phases of low-frequency components in the plurality of Fourier spectra obtained by the transform;
• on a basis of a result of the estimation in the estimating and reference data determined on a basis of the pieces of partial image data obtained in the obtaining, correcting the result of the estimation in the estimating on at least one of the pieces of partial image data;
• and
• generating a piece of output image data corresponding to the pieces of image data on a basis of the result corrected in the correcting.