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Research on Digital Halftoning Technique

Author: ShiLin
Tutor: GuoBaoLong
School: Xi'an University of Electronic Science and Technology
Course: Pattern Recognition and Intelligent Systems
Keywords: Digital halftone Error diffusion Image Feature Adaptive Evaluation parameters
CLC: TP391.41
Type: Master's thesis
Year: 2007
Downloads: 339
Quote: 11
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Abstract


Digital halftone technology is based on the visual characteristics of the human eye and the fineness of the image features , using tools such as mathematics, computer , and an image reproduction technology in binary devices or limited grayscale devices . The technology is widely used in the printing , textile , printing technology, digital image compression storage , image transfer , medical and other fields , so the study of digital halftone technology has important practical significance and application value . In this paper : 1 A new the fast error diffusion algorithm . The algorithm maintains the simplicity of universal application error diffusion algorithm , and effectively improve the processing speed ; 2 . Based on image visual features of adaptive digital halftoning algorithms . The algorithm according to the visual characteristics of each pixel of the partial image of the visual filter parameters are adjusted adaptively in smoothness, and clarity in order to achieve the control of the half-tone image quality , improve image quality ; 3. Based visual perception characteristics of the halftone image quality assessment method . Confirmed by actual experimental data for the validity of the proposed method .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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