西安理工大学学报2017，Vol.33Issue(3)：282-289,315,9.DOI:10.19322/j.cnki.issn.1006-4710.2017.03.006
图像逆半色调技术研究
A review of inverse half toning techniques
摘要
Abstract
Inverse halftoning is the restoration of a continuous image with 256 discrete levels from a halftone-distributed dot pattern.Recovering gray level image is a critical process for the halftone transform,the digital archives management and the high precision identification of halftone.This paper presents a comprehensive review of published inverse halftoning algorithms.Firstly,we present the basic mechanism model of inverse halftoning based on outputting the halftone pipeline.Then,we develop a taxonomic framework by the key techniques of inverse halftoning methods.Following the taxonomy,published researches on inverse halftoning are reviewed,with their performances evaluated by subjective and objective indicators.Finally,the shortcomings of the presented algorithms are analyzed with future directions for research suggested,which includes modeling algorithm,machine learning,color image inverse halftoning and restored image quality evaluation.关键词
半色调图像/逆半色调技术/图像恢复/图像质量评价Key words
halftone image/inverse halftoning/image restoration/image quality assessment分类
信息技术与安全科学引用本文复制引用
张燕,张二虎..图像逆半色调技术研究[J].西安理工大学学报,2017,33(3):282-289,315,9.基金项目
西安市科技计划资助项目(2017080CG/RC043(XALG020)) （2017080CG/RC043(XALG020）
