IMAGE PROCESSING APPARATUS, REGION DETERMINING METHOD, AND COMPUTER-READABLE, NON-TRANSITORY MEDIUM

摘要

Provided are an image processing apparatus, a region determining method and a computer-readable, non-transitory medium that can appropriately determine a cutting off region from a read image. The image processing apparatus includes an edge pixel extractor for extracting edge pixels from an input image, a region detector for detecting a subject region surrounded by connected edge pixels among the edge pixels, a straight line detector for detecting a plurality of straight lines within the subject region, a rectangle region detector for detecting a rectangle region formed of four straight lines where two straight lines each are substantially at right angles to each other among the plurality of straight lines, and a region determination module for determining the rectangle region as a cutting off region from the input image when the rectangle region and the subject region are substantially the same.

主权项

1. An image processing apparatus comprising:
an edge pixel extractor for extracting edge pixels from an input image; a region detector for detecting a subject region surrounded by connected edge pixels among the edge pixels; a straight line detector for detecting a plurality of straight lines within the subject region; a rectangle region detector for detecting a rectangle region formed of four straight lines in which two sets of two straight lines are substantially at right angles to each other among the plurality of straight lines; and a region determination module for determining the rectangle region as a cutting off region from the input image when the rectangle region and the subject region are substantially the same.