Patent
Color image processing
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TLDR
In this paper, a look-up table is used to perform color transformation or color retouch operation on multibit digital data defining P color components of image pixels, which is addressed by N most significant bits (MSBS) of each color component value and which contains coarse versions of output pixel color component values.Abstract:
Apparatus for performing a color transformation or color retouch operation on multibit digital data defining P color components of image pixels. The apparatus comprises a look-up table (2) which is addressed by N most significant bits (MSBS) of each color component value and which contains coarse versions of output pixel color component values. An interpolator (3) is responsive to M least significant bits (LSBS) of each color component value to interpolate fine versions of the output pixel values from the coarse output pixel values obtained from the look-up table. A processor loads coarse output pixel data for each color component into the 2NP addresses of the look-up table which may be addressed by the M MSBs of the input pixel data. The processor (8) is adapted to cause the value of N progressively to increase with successive iterations.read more
Citations
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Journal ArticleDOI
Color measurement in L ¿ a ¿ b ¿ units from RGB digital images
TL;DR: In this paper, the authors proposed a method for estimating the parameters of the models based on a minimization of the mean absolute error between the color measurements obtained by the models, and by a commercial colorimeter for uniform and homogenous surfaces.
Journal ArticleDOI
Color image processing pipeline
TL;DR: An overview of the image processing pipeline is presented, first from a signal processing perspective and later from an implementation perspective, along with the tradeoffs involved.
Book
Introduction to Digital Image Processing with MATLAB
TL;DR: Is an introduction to digital image processing from an elementary perspective that covers topics that can be introduced with simple mathematics so students can learn the concepts without getting overwhelmed by mathematical detail.
Journal ArticleDOI
Generalized multichannel image-filtering structures
Damianos Karakos,Panos Trahanias +1 more
TL;DR: A new filter structure, the directional-distance filters (DDF), is introduced, which combine both VDF and VMF in a novel way and are shown to be robust signal estimators under various noise distributions and compare favorably to other multichannel image processing filters.
Journal ArticleDOI
Adaptive fuzzy systems for multichannel signal processing
TL;DR: A general formulation based on fuzzy concepts is presented, which allows the use of adaptive weights in the filtering structure, and the strong potential of fuzzy adaptive filters for multichannel signal applications, such as color image processing, is illustrated with several examples.
References
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