The Error Diffusion Halftoning Using Local Adaptive Sharpening Control(Image Processing and Video Processing)

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概要

• 論文の詳細を見る

• Digital halftoning is used to quantize a grayscale image to a binary image. Error diffusion halftoning generates a high-quality binary image, but also generates some defects such as the warm effect, sharp ening, and so forth. To reduce these defects, Kite proposed a modified threshold modulation method that utilizes a multiplicative parameter for controlling sharpening. Nevertheless, some degradation was observed near the edges of objects with a large luminance change. In this paper, we propose a method of controlling the multiplicative parameter in proportion to the magnitude of the local edge slope. The results of computer simulation show a greater reduction of sharpening in the halftone image. In particular, there is a great improvement in the quality of the edges of objects with a large luminance change.

• 社団法人電子情報通信学会の論文
• 2004-12-01

著者

• Ahan Jae-hyeong

  Department Of Computer And Communication Engineering Chungbuk National University

• Kwak Nae-joung

  Department Of Computer And Communication Engineering Chungbuk National University

• YANG Wun-Mo

  Hansol LCD Inc.

• HAN Jae-Hyuk

  Department of Computer and Communication Engineering, Chungbuk National University

• Han Jae-hyuk

  Department Of Computer And Communication Engineering Chungbuk National University

関連論文

• The Error Diffusion Halftoning Using Local Adaptive Sharpening Control(Image Processing and Video Processing)

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