Comprehensive Halftoning of 3D Scenes.

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Bibliographic Details
Title:	Comprehensive Halftoning of 3D Scenes.
Authors:	Veryovka, O., Buchanan, J.
Source:	Computer Graphics Forum. Sep99, Vol. 18 Issue 3, p13. 10p. 7 Black and White Photographs.
Subjects:	Halftone process, Optical images, Computer graphics
Abstract:	The display of images on binary output hardware requires a halftoning step. Conventional halftoning algorithms approximate image values independently from the image content and often introduce artificial texture that obscures fine details. The objective of this research is to adapt a halftoning technique to 3D scene information and thus to enhance the display of computer generated 3D scenes. Our approach is based on the control of halftoning texture by the combination of ordered dithering and error diffusion techniques. We extend our previous work and enable a user to specify the shape, scale, direction, and contrast of the halftoning texture using an external buffer. We control texture shape by constructing a dither matrix from an arbitrary image or a procedural texture. Texture direction and scale are adapted to the external information by the mapping function. Texture contrast and the accuracy of tone reproduction are varied across the image using the error diffusion process. We halftone images of 3D scenes by using the geometry, position, and illumination information to control the halftoning texture. Thus, the texture provides visual cues and can be used to enhance the viewer's comprehension of the display. [ABSTRACT FROM AUTHOR]
	Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	Engineering Source

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Header	DbId: egs DbLabel: Engineering Source An: 4407909 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0
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Items	– Name: Title Label: Title Group: Ti Data: Comprehensive Halftoning of 3D Scenes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Veryovka%2C+O%2E%22">Veryovka, O.</searchLink><br /><searchLink fieldCode="AR" term="%22Buchanan%2C+J%2E%22">Buchanan, J.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Computer+Graphics+Forum%22">Computer Graphics Forum</searchLink>. Sep99, Vol. 18 Issue 3, p13. 10p. 7 Black and White Photographs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Halftone+process%22">Halftone process</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+images%22">Optical images</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+graphics%22">Computer graphics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The display of images on binary output hardware requires a halftoning step. Conventional halftoning algorithms approximate image values independently from the image content and often introduce artificial texture that obscures fine details. The objective of this research is to adapt a halftoning technique to 3D scene information and thus to enhance the display of computer generated 3D scenes. Our approach is based on the control of halftoning texture by the combination of ordered dithering and error diffusion techniques. We extend our previous work and enable a user to specify the shape, scale, direction, and contrast of the halftoning texture using an external buffer. We control texture shape by constructing a dither matrix from an arbitrary image or a procedural texture. Texture direction and scale are adapted to the external information by the mapping function. Texture contrast and the accuracy of tone reproduction are varied across the image using the error diffusion process. We halftone images of 3D scenes by using the geometry, position, and illumination information to control the halftoning texture. Thus, the texture provides visual cues and can be used to enhance the viewer's comprehension of the display. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo	BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/1467-8659.00323 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 13 Subjects: – SubjectFull: Halftone process Type: general – SubjectFull: Optical images Type: general – SubjectFull: Computer graphics Type: general Titles: – TitleFull: Comprehensive Halftoning of 3D Scenes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Veryovka, O. – PersonEntity: Name: NameFull: Buchanan, J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep99 Type: published Y: 1999 Identifiers: – Type: issn-print Value: 01677055 Numbering: – Type: volume Value: 18 – Type: issue Value: 3 Titles: – TitleFull: Computer Graphics Forum Type: main
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