Image processing apparatus and method for controlling same

摘要

A production unit of an image processing apparatus produces a contour signal of an image including a specific subject. A detection unit detects, on the basis of the contour signal, a representative contour direction for each of a plurality of division regions of the image, where the detection unit detects a specific direction as the representative contour direction when the direction of the entire contour portion included in the division regions is biased in the specific direction by at least a specific degree. A determination unit determines a type of the subject on the basis of at least one of a direction-based frequency distribution of the detected representative contour directions, a number of representative contour directions detected, etc. A correction unit configured to correct the image data according to a correction method corresponding to the type of the subject.

主权项

1. An image processing apparatus, comprising:
an acquisition unit configured to acquire image data expressing an image including a specific subject; a production unit configured to produce a contour signal expressing a contour portion included in the image; a detection unit configured to detect, on the basis of the contour signal, a representative contour direction for each of a plurality of division regions obtained by dividing up the image, the detection unit detecting a specific direction as the representative contour direction when the direction of the entire contour portion included in the division regions is biased in the specific direction by at least a specific degree; a determination unit configured to determine a type of the subject on the basis of at least one of the following: a number of the division regions for each representative contour direction, a number of the division regions in which a representative contour direction of a predetermined direction was detected and which are continuously aligned in a direction perpendicular to the predetermined direction in the image, and a number of representative contour directions detected; and a correction unit configured to correct the image data according to a correction method corresponding to the type of the subject.