Preparation of dot image by compaction of information

Abstract

Abstract PURPOSE: To reduce capacity of a recorder and image processing time, by extracting an image element corresponding to each dot, and compacting information quantity. CONSTITUTION: The clock pulse of encoder 10 is applied to timing control 6 to synchronize this with the clock pulse, image information picked up with input device 9 is made digital with A/D converter 7, this value is applied to buffer memory circuit A1 to store it temporarily, and this operation is continued till image information containing n' a lines of principal scanning is stored n' a ×n' b pieces of image information corresponding to the central position of dots designated by dot generating position computing circuit 23 and the dots containing that center are read out and sent to next information compacting circuit 2, the information compacted here is delivered to buffer memory circuit B to temporarily store it, and then, it is transferred to direct access memory 4 and stored here, thus permitting curtailment of recorder capacity and contraction of image processing time to be achieved by such a process. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Mitsuhiko Yamada
• 👤 Toshiaki Nakade

Bibliographic Details