A high-resolution image suited to the purpose of a doctor or the like is acquired. The present invention relates to an image processing apparatus including an acquisition unit configured to acquire a tomogram of a subject eye a first extraction unit configured to extract part of the tomogram acquired by the acquisition unit an estimating unit configured to estimate a high-frequency component based on a result of extraction by the extraction unit and a combining unit configured to combine the high-frequency component with the tomogram acquired by the acquisition unit.
