Back to results
US 6,449,397 B1Granted
Image processing system for scanning a rectangular document
AssigneeMustek Systems Inc.
InventorYang Che-Chu
Life of this patent
Estimating the term…
Abstract
The present invention provides an image processing system for scanning a rectangular document. The system comprises a scanner with a scanning module and a computer. The computer has a memory, a processor, a scanner control program, and an image processing program. Depression of a start button generates a start signal that prompts the image processing system to rotate the document image from the scanned rectangular document by a tilting angle as well as to correct the image shape based on angle variation. This produces a straight and rectangular document image.
Claims4
An image processing system comprising:
- a scanner comprising a scanning module for scanning a rectangular document and generating corresponding image signals, the rectangular document comprising four right angles, the image signals comprising a document image of the document in it;
- and
- a computer connected to the scanner comprising:
- a memory for storing programs and files;
- a processor for executing the programs stored in the memory;
- a scanner control program stored in the memory for controlling operations of the scanner and storing the image signals generated by the scanner into a main image file;
- and
- an image processing program stored in the memory for detecting a tilting angle of the document image in the main image file over which the document image is tilted about the tilting angle from an upright position and also angle variation of at least one right angle of the document image, and for correcting the document image to generate a rectangular and upright document image of the document according to the tilting angle and the angle variation of the document image.
5 more elements
Dependencies are inferred from the claim text.