1. An image processing apparatus comprising: a division unit configured to divide an image into a plurality of areas; a calculation unit configured to calculate a feature amount for each area; an area category determination unit configured to determine a category for each area based on the calculated feature amount; an image category determination unit configured to determine a category of the image based on the result of category determination by the area category determination unit; and a processing unit configured to perform correction processing on the image based on the result of category determination by the image category determination unit.