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<article article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="aggregator">72010410</journal-id>
      <journal-title>NIP &amp; Digital Fabrication Conference</journal-title>
      <abbrev-journal-title>nip digi fabric conf</abbrev-journal-title>
      <issn pub-type="ppub">2169-4451</issn><issn pub-type="epub"/>
      <publisher>
        <publisher-name>Society of Imaging Science and Technology</publisher-name>
        <publisher-loc>7003 Kilworth Lane, Springfield, VA 22151, USA</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta><article-id pub-id-type="doi">10.2352/ISSN.2169-4451.2005.21.1.art00015_2</article-id>
      <article-id pub-id-type="sici">2169-4451(20050101)2005:2L.387;1-</article-id>
      <article-id pub-id-type="publisher-id">nip_v2005n2/splitsection15.xml</article-id>
      <article-id pub-id-type="other">/ist/nipdf/2005/00002005/00000002/art00015</article-id>
      <article-categories>
        <subj-group>
          <subject>Articles</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>An Integrated Color Halftone Method for Noise Reduction</article-title>
      </title-group>
      <contrib-group>
        <contrib>
          <name>
            <surname>Shih</surname>
            <given-names>Hung-Pin</given-names>
          </name>
        </contrib>
        <contrib>
          <name>
            <surname>Han</surname>
            <given-names>Hsiao-Yu</given-names>
          </name>
        </contrib>
      </contrib-group>
      <pub-date>
        <day>01</day>
        <month>01</month>
        <year>2005</year>
      </pub-date>
      <volume>2005</volume>
      <issue>2</issue>
      <fpage>387</fpage>
      <lpage>390</lpage>
      <permissions>
        <copyright-year>2005</copyright-year>
      </permissions>
      <abstract>
        <p>Color halftoning is a method for representing continuous tone color images with limited colors. To implement halftone, error diffusion is one of the most popular algorithms due to its highperformance results. In the conventional error diffusion, the fixed thresholds and filter weights
 are used. In the process, many artifacts are introduced in the halftone images as side effects. With the color aspect, each of the three color planes is independently calculated during the process of traditional error diffusion. However, the pattern of dots formed independently by combining
 the dots of each of color planes is often not visually pleasing because no effort is made to insure that the dots of each of the different color planes are ideally distributed relative to the dots of the other color planes. In this paper, we present an integrated error diffusion algorithm
 in which variable filter weights, threshold matrix, serpentine scan path and multi-color halftoning are used to reduce the noises generated during the halftone process. Our experimental results showed that worm-like artifacts, structural artifacts and start-up artifacts are successfully decreased
 and the color halftoned images are more comfortable to the human visual system.</p>
      </abstract>
    </article-meta>
  </front>
</article>
