05726772 is referenced by 111 patents and cites 180 patents.

A method of and system for rendering a halftone image of a gray scale image by utilizing a pixel-by-pixel comparison of the gray scale image against a blue noise mask is disclosed in which the gray scale image is scanned on a pixel-by-pixel basis and compared on a pixel-by-pixel basis to an array of corresponding data points contained in a blue noise mask stored in a PROM or computer memory in order to produce the desired halftoned image. Both digital and optically implemented halftone methods are disclosed. Application specific modifications of the blue noise mask as well as its use for producing halftoned color images are also disclosed.

Title
Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
Application Number
622056
Publication Number
5726772
Application Date
October 6, 1995
Publication Date
March 10, 1998
Inventor
Theophano Mitsa
Iowa City
IA, US
Kevin J Parker
Rochester
NY, US
Agent
Wigman Cohen Leitner & Myers P C
Assignee
Research Corporation Technologies
AZ, US
IPC
H04N 1/40
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