Optimal Parameters for Error-Diffusion Halftoning with Bilateral Filter

An Shui Yu, Naoki Ono, Kohei Inoue, Hara Kenji, Kiichi Urahama

Research output: Contribution to journalArticle

Abstract

We propose a procedure for determining the parameters in the bilateral filter (BF) used for the errordiffusion halftoning where pixels are scanned in the ascending order of errors. In this halftoning, binarization errors produced at each pixel are diffused using the BF which contains two parameters, one of which is a spatial coefficient and another is for the signal intensity. The optimal values of these two parameters are determined by maximizing the PSNR of an output binary images against their input images. It is shown by experiments that the optimal value of the signal coefficient is slightly negative in contrast to popular usage of BF where the signal coefficient is usually set to a positive value.
Original languageEnglish
Pages (from-to)144-147
Number of pages4
JournalJournal of the Institute of Industrial Applications Engineers
Volume6
Issue number4
Publication statusPublished - Oct 25 2018

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