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US 8,577,174 B2Granted
Image processing apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorKyoung-youn Lee
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes a scanning unit for generating a scan image by scanning a document; a first determination unit to determine whether the scan image has a skew; a second determination unit to determine a type of the skew according to a determination result; and an image correction unit to perform a different type of correction on the scan image according to the type of the skew.
Claims18
An image processing apparatus comprising:
- a scanning unit to generate a scan image by scanning a document;
- a first determination unit to determine whether the scan image has a skew;
- a second determination unit to determine a type of the skew according to a determination result;
- and
- an image correction unit to perform a different type of correction on the scan image according to the type of the skew,
- wherein the first determination unit comprises
- a detection unit to detect one of top and bottom edges or one of left and right edges of the scan image;
- and
- a first calculation unit to calculate a skew angle of the detected edge and determining that the scan image has a skew if the calculated skew angle is not 0°.
6 more elements
An image processing apparatus comprising:
- a scanning unit to generate a scan image by scanning a document;
- a first determination unit to determine whether the scan image has a skew;
- a second determination unit to determine a type of skew according to a determination result;
- and
- an image correction unit to perform a different type of correction on the scan image according to the type of the skew,
- wherein the second determination unit determines a skew that occurs at a top edge of the scan image as a first skew, determines a skew that occurs at a left edge of the scan image as a second skew, and determines a skew that occurs at the top and left edges of the scan image as a third skew.
3 more elements
An image processing method comprising:
- generating a scan image by scanning a document using an image sensor;
- determining whether the scan image has a skew;
- determining a type of the skew according to a determination result;
- and
- performing a different type of correction on the scan image according to the type of the skew,
- wherein the determining of whether the scan image has a skew comprises
- detecting one of top and bottom edges or one of the left and right edges of the scan image;
- calculating a skew angle of the detected edge;
- and
- determining the scan image has a skew if the calculated skew angle is not 0°.
7 more elements
An image processing method comprising:
- generating a scan image by scanning a document using an image sensor;
- determining whether the scan image has a skew;
- determining a type of the skew according to a determination result;
- and
- performing a different type of correction on the scan image according to the type of the skew,
- wherein the determining of the type of skew comprises:
- determining a skew that occurs at a top edge of the scan image as a first skew;
- determining a skew that occurs at a left edge of the scan image as a second skew;
- and
- determining a skew that occurs at the top and left edges of the scan image as a third skew.
7 more elements
Dependencies are inferred from the claim text.