@inproceedings{Buchanan:1997:TDH,
opteditor = {},
optcitations =
{Floyd:1975:AAS,Geist:1993:MFD,Knuth:1987:DHD,Ostromoukhov:1994:RDD,Ostromoukhov:1995:AS,Ulichney:1987:DH,Velho:1991:DHS,Velho:1995:SSD},
optnote = {},
optaddress = {},
optorganization = {},
author = {John W. Buchanan and Lisa M. Streit},
optkey = {},
optseries = {},
localfile = {papers/Buchanan.1997.TDH.pdf},
optpublisher = {},
optmonth = {},
opturl = {},
optdoi = {},
optwww = {},
optcrossref = {},
booktitle = {Proceedings of SKIGRAPH 1997, Eighth Western Computer Graphics
Symposium (Whistler, Canada, April 1997)},
optstatus = {doi, url, publisher},
optvolume = {},
optnumber = {},
title = {{T}hreshold{D}iffuse {H}ybrid {H}alftoning {M}ethods},
abstract = {Grayscale images can be displayed on binary display devices using
a process known as halftoning where gray intensities are
approximated by different distributions of black and white pixels.
There is a significant number of methods with which these binary
or halftoned approximations can be generated. Most of the
available methods can be categorized as either a thresholdmatrix
halftoning method or as an errordiffusion halftoning method.
The thresholdmatrix halftoning methods are fast and simple to
implement and they can be used with or without an increase in
resolution. The binary approximation of each grayscale value is
computed independently. Images halftoned with threshold matrices
often exhibit quantization bands in areas of the image where a
smooth intensity change occurs. Errordiffusion halftoning
methods approximate the image one segment at a time. Any error
resulting from a segment's approximation is propagated to
unprocessed segments. In this paper we present some results from
our current research focused on producing halftoning methods that
are hybrids of thresholdmatrix and errordiffusion halftoning.
In particular, we introduce three hybrid methods: Thresholdmatrix
with errordiffusion, Variable shape thresholdmatrix, and
Variable threshold with errordiffusion. Each of these techniques
brings together aspects from both thresholdmatrix and
errordiffusion halftoning methods. The common feature of these
three methods is that they remove the quantization bands
introduced by the use of small threshold matrices.},
year = {1997},
pages = {7990},
}
