Concept

Color quantization

Related publications (52)

True color communication

Embodiments of the present invention recite a system and method for conveying the true color of a subject. In one embodiment, the present invention comprises an image capture device, an imaged reference color set comprising at least one reference color, an ...

2009

Display method and system using transmissive and emissive components

Sabine Süsstrunk

A method and system is provided for creating a display and generating images. Creating the display includes receiving a transmissive display component over an emissive display component and positioning each emissive display pixel with one or more transmiss ...

2009

Optimal Color Filter Array Design: Quantitative Conditions and an Efficient Search Procedure

Martin Vetterli, Yue Lu

Most digital cameras employ a spatial subsampling process, implemented as a color filter array (CFA), to capture color images. The choice of CFA patterns has a great impact on the performance of subsequent reconstruction (demosaicking) algorithms. In this ...

2009

A comparative study of color image compression standards using perceptually driven quality metrics

Touradj Ebrahimi, Francesca De Simone, Frédéric Dufaux, Michael Ansorge

The task of comparing the performance of different codecs is strictly related to the research in the field of objective quality metrics. Even if several objective quality metrics have been proposed in literature, the lack of standardization in the field of ...

SPIE2008

Face Detection Using Discrete Gabor Jets And Color Information

Touradj Ebrahimi, Ashkan Yazdani, Ulrich Hoffmann

Face detection allows to recognize and detect human faces and provides information about their location in a given image. Many applications such as biometrics, face recognition, and video surveillance employ face detection as one of their main modules. The ...

2008

Method and Apparatus for Generating Digital Halftone Images by Using Multi Color Dithering

Roger Hersch

The invention provides a method and apparatus for the reproduction of color images by multi-color dithering. Multi-color dithering is an extension of bi-level dithering for halftoning an input image using as primary colors an arbitrary number of inks. The ...

2006

Natural Scene Image Modeling using Color and Texture Visterms.

Jean-Marc Odobez, Pedro Manuel Da Silva Quelhas

This paper presents a novel approach for visual scene representation, combining the use of quantized color and texture local invariant features (referred to here as {\em visterms}) computed over interest point regions. In particular we investigate the diff ...

2006

Natural Scene Image Modeling using Color and Texture Visterms.

Jean-Marc Odobez, Pedro Manuel Da Silva Quelhas

IDIAP2006

The Influence of Luminance on Local Tone Mapping

Sabine Süsstrunk, Laurence Meylan

We study the influence of the choice of color space for local tone mapping methods. Many local tone mapping methods do not perform well when applied independently to the three color channels of an RGB image. A common solution is to only treat the luminance ...

2005

A Posteriori Quantization of Progressive Matching Pursuit Streams

Pascal Frossard, Pierre Vandergheynst, Murat Kunt

This paper proposes a rate-distortion optimal a posteriori quantization scheme for Matching Pursuit coefficients. The a posteriori quantization applies to a Matching Pursuit expansion that has been generated off-line, and cannot benefit of any feedback loo ...

2004

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