Image reading apparatus

Details Image reading apparatus Image reading apparatus

1995-07-10

1998-06-30

Lee, Thomas D.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358474, 382255, H04N 104, H04N 140, H04N 110

Patent

active

057742375

ABSTRACT:
An image reading apparatus is for reading a document such as a book from above with the target faces thereof placed upwardly. The apparatus allows for correction of distortions of the image, without relying on the background color of the target faces of the document. An image processing device detects the boundary between the document and a document-guiding device (the document edge) on the basis of the image read by the image reading device and corrects distortions of the image with reference to the detected boundary.

REFERENCES:
patent: 5084611 (1992-01-01), Okisu et al.
patent: 5151797 (1992-09-01), Nosaki et al.
patent: 5416609 (1995-05-01), Matsuda et al.

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