Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1995-09-22

2000-07-11

Grant, II, Jerome

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358470, 358529, 382243, H04N 140, H04N 104

Patent

active

060881305

ABSTRACT:
An image processing apparatus and method are adapted to prevent a decline in image quality while reducing the number of bits in a discrimination signal stored in memory. The apparatus includes an image compressing device for encoding image data in prescribed block units and then storing the encoded data in a memory, after which the stored image data is decoded and outputted. A black-character discriminating unit discriminates a plurality of attributes of the image data, and a black-character compressing device encodes the plural results of discrimination in conformity with the image processing. The plurality of codes are divided into blocks of different sizes in such a manner that resolution is reduced, and the codes are stored in memory. Thereafter, the stored codes are decompressed and sent to a masking UCR circuit and to a spatial filter. On the basis of the codes sent, the masking UCR circuit and spatial filter apply image processing to the image data outputted from the image compressing device.

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