The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo apresenta um novo método de projeto de uma matriz de pontilhamento baseado em recozimento simulado. Uma matriz de pontilhamento obtida (tela/máscara de meio-tom) é apropriada para impressão em prensa. Por vários motivos físicos, o meio-tom para impressão em prensa é mais difícil do que o meio-tom para displays eletrônicos ou impressoras a jato de tinta. Mesmo que a triagem estocástica de pontos dispersos (a chamada triagem FM) seja uma das melhores soluções para meios-tons, isso não é apropriado para impressão em impressoras. Por outro lado, a triagem periódica clássica de pontos agrupados (chamada triagem AM) é mais importante e é amplamente utilizada até hoje. Reconhecemos a qualidade desfavorável da triagem AM, mas não podemos ignorar a sua estabilidade produtiva na seção de impressão. A matriz de pontilhamento de meio-tom proposta possui um padrão de pontos agrupados aperiódico e o tamanho do cluster pode ser controlado por um parâmetro de ponderação de uma função de custo. Obteremos uma matriz de pontilhamento que consiste em pontos agrupados. Algumas características do algoritmo de design e imagens em meios-tons são investigadas detalhadamente. Como resultado, é confirmado o fato de que uma matriz de pontilhamento obtida é superior à tela AM e comparável à tela FM em qualidade visual, e a matriz é comparável à tela AM e superior à tela FM na capacidade de impressão da impressora.
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Yoshito ABE, "A New Method of Designing a Dither Matrix" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 7, pp. 1702-1709, July 2002, doi: .
Abstract: This paper presents a new method of designing a dither matrix based on simulated annealing. An obtained dither matrix (halftone screen/mask) is appropriate for press printing. Because of several physical reasons, halftoning for press printing is more difficult than halftoning for electronic displays, or ink-jet printers. Even if stochastic dispersed-dot screening (so-called FM-screening) is one of the best solutions for halftoning, that is not appropriate for press printing. On the other hand, classical periodic clustered-dot screening (so-called AM-screening) is more important and is widely used even now. We recognize unfavorable quality of AM-screening, but we can not ignore its productive stability in printing section. The proposed halftone dither matrix has aperiodic clustered-dot pattern, and size of cluster can be controlled by a weighting parameter of a cost function. We will obtain a dither matrix which consists of clustered-dots. Some characteristics of the design algorithm and halftoned images are investigated in detail. As a result, the fact that an obtained dither matrix is superior to AM-screen and comparable to FM-screen in visual quality, and the matrix is comparable to AM-screen and superior to FM-screen in press printability is confirmed.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_7_1702/_p
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@ARTICLE{e85-a_7_1702,
author={Yoshito ABE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A New Method of Designing a Dither Matrix},
year={2002},
volume={E85-A},
number={7},
pages={1702-1709},
abstract={This paper presents a new method of designing a dither matrix based on simulated annealing. An obtained dither matrix (halftone screen/mask) is appropriate for press printing. Because of several physical reasons, halftoning for press printing is more difficult than halftoning for electronic displays, or ink-jet printers. Even if stochastic dispersed-dot screening (so-called FM-screening) is one of the best solutions for halftoning, that is not appropriate for press printing. On the other hand, classical periodic clustered-dot screening (so-called AM-screening) is more important and is widely used even now. We recognize unfavorable quality of AM-screening, but we can not ignore its productive stability in printing section. The proposed halftone dither matrix has aperiodic clustered-dot pattern, and size of cluster can be controlled by a weighting parameter of a cost function. We will obtain a dither matrix which consists of clustered-dots. Some characteristics of the design algorithm and halftoned images are investigated in detail. As a result, the fact that an obtained dither matrix is superior to AM-screen and comparable to FM-screen in visual quality, and the matrix is comparable to AM-screen and superior to FM-screen in press printability is confirmed.},
keywords={},
doi={},
ISSN={},
month={July},}
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TY - JOUR
TI - A New Method of Designing a Dither Matrix
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1702
EP - 1709
AU - Yoshito ABE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 2002
AB - This paper presents a new method of designing a dither matrix based on simulated annealing. An obtained dither matrix (halftone screen/mask) is appropriate for press printing. Because of several physical reasons, halftoning for press printing is more difficult than halftoning for electronic displays, or ink-jet printers. Even if stochastic dispersed-dot screening (so-called FM-screening) is one of the best solutions for halftoning, that is not appropriate for press printing. On the other hand, classical periodic clustered-dot screening (so-called AM-screening) is more important and is widely used even now. We recognize unfavorable quality of AM-screening, but we can not ignore its productive stability in printing section. The proposed halftone dither matrix has aperiodic clustered-dot pattern, and size of cluster can be controlled by a weighting parameter of a cost function. We will obtain a dither matrix which consists of clustered-dots. Some characteristics of the design algorithm and halftoned images are investigated in detail. As a result, the fact that an obtained dither matrix is superior to AM-screen and comparable to FM-screen in visual quality, and the matrix is comparable to AM-screen and superior to FM-screen in press printability is confirmed.
ER -