a photograph may have some areas completely white and some completely black - most areas, however, will be somewhere in between - if you wish to represent that picture electronically, you have to judge the 'greyness' of each part of the picture - if you represent this on a scale of 0 to 15 (16 grey levels), it will not give such a faithful represen...
Found on
http://www.archivemag.co.uk/
Number of distinct grey tones that can be reproduced by a computer.
Found on
https://www.encyclo.co.uk/local/20631
No exact match found.
