Image analysis – Image transformation or preprocessing – Changing the image coordinates
Patent
1997-02-21
2000-05-30
Vu, Kim Yen
Image analysis
Image transformation or preprocessing
Changing the image coordinates
358448, 358451, 382299, H04N 1393
Patent
active
060699833
ABSTRACT:
It is determined whether the long sides of a document are parallel to the main or sub scanning direction of a scanner to set resolutions of image data along the short and long sides of the document while the image data is being facsimiled. When the long sides of the document is parallel to the main scanning direction, the scanner scans the document in the main scanning direction by the resolution along the long sides and in the sub scanning direction by the resolution along the short sides to read the image data. The image data is rotated 90 degrees, and the rotated image data is facsimiled in the A4-R direction based on the ITU's recommendation. The image data is not degraded when it is rotated but can be transmitted in good quality.
REFERENCES:
patent: 5521720 (1996-05-01), Yoshida
Kabushiki Kaisha Toshiba
Vu Kim Yen
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