Scanner and scanning method

摘要

A scanner is configured to scan an original sheet to generate image data, an image on the original sheet being subject to scanning, obtaining a first side of the original sheet area within one of a leading end side part and a trailing end side part of the image, the first end side part being a part where two edges having a common end do not exist, an outer side edge in the first end side part being obtained as the first side, obtaining a second side of the original sheet area within a second side part, the second end side part being a part where a pair of edges having a common end exists, one of the pair of edges closer to the first end side part being obtained as the second side, and determining the original sheet area based on the first and the second sides.

主权项

1. A scanner, comprising:
a scanning device configured to scan an image on an original sheet; and a controller, wherein the controller, when executing instructions, is configured to execute: a scanning process in which the controller causes the scanning device to scan an original sheet to generate image data, an image on the original sheet being subject to scanning; an identifying process in which the an original sheet area defining an area of an image of the front surface of the original sheet from an image represented by the image data obtained in the scanning process, the identifying process including:
a first side obtaining process in which the controller obtains a first side of the original sheet area within a first end side part which is one of a leading end side part and a trailing end side part of the image, the first end side part being a part where two edges having a common end do not exist, the controller obtaining an outer side edge in the first end side part as the first side;a second side obtaining process in which the controller obtains a second side of the original sheet area within a second side part which is the other of a leading end side part and a trailing end side part of the image, the second end side part being a part where a pair of edges having a common end exists, the controller obtaining one of the pair of edges closer to the first end side part as the second side; anda determining process in which the controller determines the original sheet area based on the first side and the second side; and an extraction process in which the controller extracts an image within the original sheet area from an image represented by the image data obtained in the scanning process.