Title :
A progressive scheme for digital image halftoning, coding of halftones, and reconstruction
Author :
Kollias, Stefanos ; Anastassiou, Dimitris
Author_Institution :
Dept. of Electr. Eng., Nat. Tech. Univ. of Athens, Greece
fDate :
6/1/1992 12:00:00 AM
Abstract :
A digital halftoning technique for the efficient transformation of gray-scale images into bilevel ones, based on the progressive generation of the bilevel image pixels in a parallel way, is presented. An image distortion criterion, in which the gray-tone image is approximated by a filtered version of the halftoned image, is used for this purpose. A combined scheme is also derived in which continuous-tone images are progressively coded and transmitted in bilevel form and can be reconstructed in gray-scale form
Keywords :
encoding; picture processing; bilevel image pixels; continuous-tone images; digital image halftoning; gray-scale images; gray-tone image; image coding; image distortion; image reconstruction; progressive method; Digital images; Displays; Distortion measurement; Filters; Image coding; Image reconstruction; Nonlinear distortion; Pixel; Printers; Signal processing;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
