Image size change in conjunction with coding and decoding

Details Image size change in conjunction with coding and decoding Image size change in conjunction with coding and decoding

1991-08-09

1994-10-11

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3582611, H04N 104

Patent

active

053552326

ABSTRACT:
An image processing method and apparatus in which image data is divided into blocks each containing a plurality of pixels and is coded and decoded on the basis of such blocks. When the image data is enlarged or reduced, enlargement is conducted before the coding and decoding, while reduction is performed after coding and decoding, whereby quantization errors caused by the coding and decoding is minimized.

REFERENCES:
patent: 4536802 (1985-08-01), Kurata
patent: 4958237 (1990-09-01), Kubota

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