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Color Halftoning with Blue Noise Masks

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Color halftoning using a conventional screen requires rotating the screen by different angles for different color planes to avoid Moiré patterns. With the Blue Noise Mask (BNM), which is a stochastic screen that produces visually pleasing blue noise, Moiré patterns are not produced and therefore screen angles are not required. We have developed several strategies to apply our masks to color planes as following:

1. the Dot-on-Dot scheme, which uses the same mask on all color planes.

2. the Shifting scheme, which uses shifted versions of same mask on different planes.

3. the Inverting scheme, which applies one mask and its inverted version to two planes, with an optional adaptive algorithm for other planes.

4. the Four Masks scheme, whereby four distinct masks are generated for each of the CMYK planes. These masks are anti-correlated in a mutually exclusive manner so that color dye is maximally dispersed.

These schemes are applied to color images, and the results are studied in the CIELAB space based on human visual model. Comparisons against error diffusion results are also presented.
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Document Type: Research Article

Publication date: 01 January 1996

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  • CIC is the premier annual technical gathering for scientists, technologists, and engineers working in the areas of color science and systems, and their application to color imaging. Participants represent disciplines ranging from psychophysics, optical physics, image processing, color science to graphic arts, systems engineering, and hardware and software development. While a broad mix of professional interests is the hallmark of these conferences, the focus is color. CICs traditionally offer two days of short courses followed by three days of technical sessions that include three keynotes, an evening lecture, a vibrant interactive (poster) papers session, and workshops. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper; there are also Best Paper and Best Student Paper awards.

    Please note: for Purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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