Digital Color Imaging
Gaurav Sharma,H. Joel Trussell +1 more
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TLDR
A survey of color imaging can be found in this article, where the fundamental concepts of color perception and measurement are first presented us-ing vector-space notation and terminology, along with common mathematical models used for representing these devices.Abstract:
This paper surveys current technology and research in the area of digital color imaging. In order to establish the background and lay down terminology, fundamental concepts of color perception and measurement are first presented us-ing vector-space notation and terminology. Present-day color recording and reproduction systems are reviewed along with the common mathematical models used for representing these devices. Algorithms for processing color images for display and communication are surveyed, and a forecast of research trends is attempted. An extensive bibliography is provided.read more
Citations
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Proceedings ArticleDOI
Color text extraction from camera-based images: the impact of the choice of the clustering distance
TL;DR: It is shown that the main problem is not in the choice of color spaces for generic text extraction but in the decision of clustering distances to handle alt degradations present in this kind of images.
Journal ArticleDOI
Color targets: fiducials to help visually impaired people find their way by camera phone
James Coughlan,Roberto Manduchi +1 more
TL;DR: An important contribution of this paper is a principled method for optimizing the design of the color targets and the color target detection algorithm based on training data, instead of relying on heuristic choices as in the previous work.
Journal ArticleDOI
Single-sensor imaging in consumer digital cameras: a survey of recent advances and future directions
TL;DR: The most distinctive elements of a single-sensor imaging pipeline, such as color filter array configurations, image interpolation solutions, and picture storage approaches are reviewed and commented upon.
Proceedings ArticleDOI
Color illumination models for image matching and indexing
TL;DR: In this paper, a set of color invariants for image matching and indexing is presented, along with a small abstract about photometry and cameras, which allows one to justify the choice of a color representation system.
Journal ArticleDOI
Visualization of dyed NAPL concentration in transparent porous media using color space components
TL;DR: The technology presented in this paper is fast, accurate, non-intrusive and inexpensive method for quantifying contamination zones using transparent soil models.
References
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Some methods for classification and analysis of multivariate observations
TL;DR: The k-means algorithm as mentioned in this paper partitions an N-dimensional population into k sets on the basis of a sample, which is a generalization of the ordinary sample mean, and it is shown to give partitions which are reasonably efficient in the sense of within-class variance.
Journal ArticleDOI
Least squares quantization in PCM
TL;DR: In this article, the authors derived necessary conditions for any finite number of quanta and associated quantization intervals of an optimum finite quantization scheme to achieve minimum average quantization noise power.
Journal ArticleDOI
An Algorithm for Vector Quantizer Design
Y. Linde,A. Buzo,Robert M. Gray +2 more
TL;DR: An efficient and intuitive algorithm is presented for the design of vector quantizers based either on a known probabilistic model or on a long training sequence of data.
Book
Vector Quantization and Signal Compression
Allen Gersho,Robert M. Gray +1 more
TL;DR: The author explains the design and implementation of the Levinson-Durbin Algorithm, which automates the very labor-intensive and therefore time-heavy and expensive process of designing and implementing a Quantizer.
Journal ArticleDOI
Lightness and Retinex Theory
Edwin H Land,John J. McCann +1 more
TL;DR: The mathematics of a lightness scheme that generates lightness numbers, the biologic correlate of reflectance, independent of the flux from objects is described.