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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
하프토닝은 회색조 이미지를 흑백 픽셀이 있는 이진 이미지로 변환하는 중요한 프로세스입니다. DBS(Direct Binary Search)는 원본 회색조 이미지의 중간 톤에 대한 고품질 이진 이미지를 생성할 수 있는 잘 알려진 하프토닝 방법 중 하나입니다. 그러나 DBS에서 생성된 이진 이미지에는 클리핑이 있습니다. 즉, 원본 그레이 스케일 이미지의 밝은 부분과 어두운 부분에 톤이 없습니다. 본 논문의 첫 번째 기여는 DBS가 클리핑이 포함된 이진 영상을 생성하는 이유를 밝히고 클리핑이 있을 수 있는 원본 영상의 톤 범위를 명확히 하며 클리핑이 없는 DBS 기반 하프토닝 알고리즘을 제시하는 것입니다. 핵심 아이디어는 DBS 기반 방법으로 생성된 임계값 배열을 사용하여 순서화된 디더링을 하이라이트와 섀도우에 적용한 후 DBS를 사용하는 것입니다. 두 번째 기여는 DBS를 확장하여 생성하는 것입니다. L-각 픽셀이 강도 레벨 중 하나를 취하는 레벨 멀티톤 이미지
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Xia ZHUGE, Koji NAKANO, "Clipping-Free Halftoning and Multitoning Using the Direct Binary Search" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 4, pp. 1192-1201, April 2009, doi: 10.1587/transfun.E92.A.1192.
Abstract: Halftoning is an important process to convert a gray scale image into a binary image with black and white pixels. The Direct Binary Search (DBS) is one of the well-known halftoning methods that can generate high quality binary images for middle tone of original gray scale images. However, binary images generated by the DBS have clippings, that is, have no tone in highlights and shadows of original gray scale images. The first contribution of this paper is to show the reason why the DBS generates binary images with clippings, to clarify the range of tone in original images that may have clipping, and to present a clipping-free DBS-based halftoning algorithm. The key idea is to apply the ordered dither using a threshold array generated by DBS-based method, to highlights and shadows, and then use the DBS. The second contribution is to extend the DBS to generate L-level multitone images with each pixel taking one of the intensity levels
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.1192/_p
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@ARTICLE{e92-a_4_1192,
author={Xia ZHUGE, Koji NAKANO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Clipping-Free Halftoning and Multitoning Using the Direct Binary Search},
year={2009},
volume={E92-A},
number={4},
pages={1192-1201},
abstract={Halftoning is an important process to convert a gray scale image into a binary image with black and white pixels. The Direct Binary Search (DBS) is one of the well-known halftoning methods that can generate high quality binary images for middle tone of original gray scale images. However, binary images generated by the DBS have clippings, that is, have no tone in highlights and shadows of original gray scale images. The first contribution of this paper is to show the reason why the DBS generates binary images with clippings, to clarify the range of tone in original images that may have clipping, and to present a clipping-free DBS-based halftoning algorithm. The key idea is to apply the ordered dither using a threshold array generated by DBS-based method, to highlights and shadows, and then use the DBS. The second contribution is to extend the DBS to generate L-level multitone images with each pixel taking one of the intensity levels
keywords={},
doi={10.1587/transfun.E92.A.1192},
ISSN={1745-1337},
month={April},}
부
TY - JOUR
TI - Clipping-Free Halftoning and Multitoning Using the Direct Binary Search
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1192
EP - 1201
AU - Xia ZHUGE
AU - Koji NAKANO
PY - 2009
DO - 10.1587/transfun.E92.A.1192
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 2009
AB - Halftoning is an important process to convert a gray scale image into a binary image with black and white pixels. The Direct Binary Search (DBS) is one of the well-known halftoning methods that can generate high quality binary images for middle tone of original gray scale images. However, binary images generated by the DBS have clippings, that is, have no tone in highlights and shadows of original gray scale images. The first contribution of this paper is to show the reason why the DBS generates binary images with clippings, to clarify the range of tone in original images that may have clipping, and to present a clipping-free DBS-based halftoning algorithm. The key idea is to apply the ordered dither using a threshold array generated by DBS-based method, to highlights and shadows, and then use the DBS. The second contribution is to extend the DBS to generate L-level multitone images with each pixel taking one of the intensity levels
ER -