| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an image forming device which can form the dot image of high dignity and with high degree of freedom. SOLUTION: A screen is made into a 4×4 pixel matrix, concentration data per pixel into '1' and the concentration of the whole matrix into 16. Then, 4/16 of matrix image concentration data is dispersed to a group (a), 12/16 of data to a group (b) and subsequent data to a group (c). To put it concretely, 1/4 of concentration data is given to the four pixels described as (a) when matrix image concentration is 1/16. Since four pixels which are 1/4 of pixel concentration data exist, pixel concentration is '1' in total. Thus, 1/16 of matrix concentration can be reproduced.</p> |
