Image processing device, image processing method, and image processing program

An image processing method for generating an output image with reduced distortion from an input image with an aberration distortion obtained from an image formation optical system, said method comprising:

• a high order arithmetic step which computes a sampling position on said input image by a high order polynomial from predetermined pixel positions in said output image for compensation of distortion aberration;
• an interpolating calculation step which carries out interpolation calculation of the sampling position in said input image in pixel positions other than said predetermined pixel positions in said output image from a sampling position of predetermined output pixels near a pixel;
• and
• a sampling step which samples a pixel value of said input image in a sampling position computed by said high order arithmetic step and said interpolating calculation step.

An image processing program, stored on a computer-readable medium and containing computer-executable instructions to be performed on a computer, which generates an output image which reduced distortion from an input image input with an aberration distortion of an image formation optical system, comprising:

• a high order arithmetic step which computes a sampling position on said input image by a high order polynomial from predetermined pixel positions in said output image for compensation of said distortion aberration;
• an interpolating calculation step which carries out interpolation calculation of the sampling position on said input image in pixel positions other than said predetermined pixel positions in said output image from a sampling position of said predetermined output pixels near a pixel;
• and
• a sampling step which samples a pixel value of said input image in a sampling position computed via said high order arithmetic step and said interpolating calculation step.