Image segmentation using discrete cosine transfer data, and imag

Details Image segmentation using discrete cosine transfer data, and imag Image segmentation using discrete cosine transfer data, and imag

1992-04-27

1995-05-16

Ro, Bentsu

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

358433, H04N 1415

Patent

active

054166039

ABSTRACT:
An image-data transmitter, applicable to a FAX and an image file apparatus, receives image data including a plurality of image-data portions, and identifies the image data for each image-data portion so as to detect a kind of image data for each image-data portion, such as a binary image and a multilevel image. Then the image-data transmitter codes the image data for each image-data portion in accordance with a coding scheme corresponding to the kind of image data of the image-data portion. Thus, a coding efficiency and an image quality of a restored image are not so much degraded.

REFERENCES:
patent: 5070402 (1991-12-01), Ishii et al.
patent: 5070532 (1991-12-01), Faul et al.
patent: 5093714 (1992-03-01), Hashimoto
patent: 5097320 (1992-03-01), Wilkinson
patent: 5162923 (1992-11-01), Yoshida et al.
patent: 5196933 (1993-03-01), Henot
patent: 5241395 (1993-08-01), Chen

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