Method of processing gradation information

Details Method of processing gradation information Method of processing gradation information

1984-08-31

1987-06-23

Evans, Arthur G.

Boots, shoes, and leggings

358298, H04N 140

Patent

active

046758313

ABSTRACT:
A mother matrix pattern MMP is divided into (m.times.n) child matrix patterns CMP.sub.11 -CMP.sub.mn comprising m patterns in the main scanning direction and n patterns in the sub-scanning direction, where the first foot-character denotes the position of each child matrix pattern within the mother matrix pattern in the main scanning direction and the latter foot-character denotes the position thereof in the sub-scanning direction, the mother matrix pattern being expressed by; ##EQU1## and image information corresponding to one mother matrix pattern is obtained with (m.times.n) gradation data ##EQU2## comprising ICD.sub.11 -ICD.sub.mn similarly, information of the child matrix pattern CMP.sub.ij in the mother matrix pattern specified with the gradation data ICD.sub.ij is obtained as information in the form of bit distribution for the gradation data ICD.sub.ij. In other words, the position of each of the child matrix patterns for obtaining image information in accordance with both array of one mother matrix pattern and (m.times.n) gradation data is located in a position corresponding to the position of the gradation data within the mother matrix pattern. The reproduced image is thus formed in such a fashion that (m.times.n) child matrix patterns having information of the respective mother matrix patterns in accordance with the respective gradation data and locating in predetermined positions to constitute one mother matrix pattern are arrayed in an area of the reproduced image corresponding to one mother matrix pattern.

REFERENCES:
patent: 4485397 (1984-11-01), Schenter et al.

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