Image data read out system in a digital image processing system

Details Image data read out system in a digital image processing system Image data read out system in a digital image processing system

1989-05-05

1991-06-04

Evans, Arthur G.

Boots, shoes, and leggings

364200, 364900, G06K 1500

Patent

active

050219774

ABSTRACT:
An image data read out system in a digital image processing system which includes an image buffer memory for storing image data, a predetermined area of the image buffer memory being defined as a window having n (columns).times.m (rows). An image data processing circuit sequentially reads out the image data from every one column in the image buffer memory, converts a bit structure of the image data from parallel data to serial data, packs the serial data into packed data in predetermined groups of bits and transfers the packed data to a next stage. A basic line memory group has n basic line memories, where n corresponds to a number of columns, each of the basic line memories having m line memories, where m corresponds to a number of rows. The image data of one column is stored in one of the basic line memories such that each bit of the image data is shifted one by one at every one of the basic line memories. An order conversion circuit aligns an order of the image data simultaneously read out from each of the basic line memories in accordance with the order of the columns in the image buffer memory. A microprocessor accesses the same address of each of the basic line memories, simultaneously reads out accessed image data from each of the basic line memories, and calculates the accessed image data after aligning the accessed image data in the order conversion circuit.

REFERENCES:
patent: 4791680 (1988-12-01), Yokoe et al.

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