Importance Driven Halftoning

dc.contributor.authorStreit, L.en_US
dc.contributor.authorBuchanan, J.en_US
dc.date.accessioned2015-02-15T19:15:05Z
dc.date.available2015-02-15T19:15:05Z
dc.date.issued1998en_US
dc.description.abstractMost halftoning techniques have been primarily concerned with achieving an accurate reproduction of local gray-scale intensities while avoiding the introduction of artifacts. A secondary concern in halftoning has been the preservation of edges in the halftoned image. In this paper, we will introduce a new halftoning technique that utilizes a bandpass pyramid to achieve an accurate reproduction of important attributes in the image. Ink is distributed through the bandpass pyramid primarily according to a user defined importance function. This technique has three main characteristics. First, our technique can produce results similar to many other halftoning techniques by allowing a generic importance function to be specified. If the chosen importance function is average intensity we obtain results similar to traditional halftoning. We also show how the importance function can be changed to highlight areas with high variance. Second, in addition to changing the importance function, the drawing primitives can also be changed. By using line segments instead of single pixels as drawing primitives we illustrate how edge enhancement can be achieved. Third, this technique allows the user to easily limit the number drawing primitives used. This is useful in limited resource rendering.In addition to providing a tailorable halftoning technique our method can easily be adapted to produce two tone non-photorealistic (NPR) images. We illustrate this by showing how sketched effects can be achieved by aligning the drawing primitives according to different image attributes.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume17en_US
dc.identifier.doi10.1111/1467-8659.00268en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages207-217en_US
dc.identifier.urihttps://doi.org/10.1111/1467-8659.00268en_US
dc.publisherBlackwell Publishers Ltd and the Eurographics Associationen_US
dc.titleImportance Driven Halftoningen_US
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