Image processing apparatus, image pickup apparatus, image processing method, and storage medium

An image pickup apparatus comprising:

• an image sensor configured to photoelectrically convert an optical image formed by an imaging optical system;
• and
• an image processing apparatus,
• wherein the image processing apparatus includes at least one processor or circuit configured to execute a plurality of tasks including:
• an image acquiring task configured to acquire a first image and a second image that have been obtained by imaging at imaging positions different from each other;
• an image restoration processing task configured to acquire a first restored image and a second restored image by performing image restoration processing for the first image and the second image respectively;
• and
• a pixel increasing processing task configured to acquire a pixel increased image using the first restored image and the second restored image. having imaging positions different from each other.

An image processing method comprising the steps of:

• acquiring a first image and a second image that have been obtained by imaging at imaging positions different from each other;
• acquiring a first restored image and a second restored image by performing image restoration processing for the first image and the second image respectively;
• and
• acquiring a pixel increased image using the first restored image and the second restored image.