Digital Halftoning

Digital Halftoning PDF Author: Robert Ulichney
Publisher: MIT Press
ISBN: 9780262210096
Category : Computers
Languages : en
Pages : 396

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Book Description
Physical reconstruction function. Tools for fourier analysis. Dithering with white noise. Clustered-dot ordered dither. Dispersed-dot ordered dither. Ordered dither on asymmetric grids. Dithering with blue noise. Concluding remarks. Glossary of principal symbols. References. Index.

Digital Halftoning

Digital Halftoning PDF Author: Robert Ulichney
Publisher: MIT Press
ISBN: 9780262210096
Category : Computers
Languages : en
Pages : 396

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Book Description
Physical reconstruction function. Tools for fourier analysis. Dithering with white noise. Clustered-dot ordered dither. Dispersed-dot ordered dither. Ordered dither on asymmetric grids. Dithering with blue noise. Concluding remarks. Glossary of principal symbols. References. Index.

Selected Papers on Digital Halftoning

Selected Papers on Digital Halftoning PDF Author: Jan P. Allebach
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Computer graphics
Languages : en
Pages : 764

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Book Description
This text presents 76 papers on halftone imaging. Subjects covered include basic principles, point processes, neighbourhood processes, iterative methods, printer models, and colour.

Geometry, Morphology, and Computational Imaging

Geometry, Morphology, and Computational Imaging PDF Author: Tetsuo Asano
Publisher: Springer Science & Business Media
ISBN: 3540009167
Category : Computers
Languages : en
Pages : 449

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Book Description
This book constitutes the thoroughly refereed post-proceedings of the 11th International Workshop on Theoretical Foundations of Computer Vision, held in Dagstuhl Castle, Germany in April 2002. The 27 revised full papers presented went through two rounds of reviewing and improvement and assess the state of the art in geometry, morphology, and computational imaging. The papers are organized in sections on geometry - models and algorithms; property measurement in the grid and on finite samples; features, shape, and morphology; and computer vision and scene analysis.

Modern Digital Halftoning

Modern Digital Halftoning PDF Author: Daniel L. Lau
Publisher: CRC Press
ISBN: 1351835688
Category : Technology & Engineering
Languages : en
Pages : 626

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Book Description
The late 1980s, revolutionary advances in digital halftoning enabled inkjet printers to achieve much higher image fidelity. The rapid rate of progress has resulted in numerous breakthroughs scattered throughout the literature, rendering old technologies obsolete and renewing the need for a centralized source on the current state of the art. Entirely revised and updated, Modern Digital Halftoning, Second Edition provides an integrated and up-to-date treatment of stochastic halftoning and digital printing. Using full-color illustrations to enhance the text, this edition incorporates new topics as well as updated models, algorithms, and methods used to construct and improve the quality of green-noise, blue-noise, and multitone images. Following a review of various halftoning techniques, this edition now covers amplitude modulated dither arrays, adapting to human visual models, direct binary search, and handling stochastic moiré problems. It also presents a new chapter on lenticular printing, a means for printing color holographic images. An accompanying CD-ROM contains MATLAB® software files and illustrated examples employing algorithms, statistics, and other key concepts from the book. Documenting the development of digital printing since the first edition, Modern Digital Halftoning, Second Edition offers a well-rounded and accurate perspective on the technological capabilities of digital printing and provides all the necessary tools for continuing research in the field.

Digital Color Halftoning

Digital Color Halftoning PDF Author: Henry R. Kang
Publisher: SPIE-International Society for Optical Engineering
ISBN:
Category : Art
Languages : en
Pages : 566

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Book Description
This guide is aimed at professionals in the field of digital colour imaging who want to understand the halftone process or design halftone equipment and processes for research and development purposes. It is also suitable as a textbook for undergraduates and graduates in printing and graphic arts.

Improving Image Quality in Visual Cryptography

Improving Image Quality in Visual Cryptography PDF Author: Bin Yan
Publisher: Springer
ISBN: 9811382891
Category : Technology & Engineering
Languages : en
Pages : 131

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Book Description
This book comprehensively covers the important efforts in improving the quality of images in visual cryptography (VC), with a focus on cases with gray scale images. It not only covers schemes in traditional VC and extended VC for binary secret images, but also the latest development in the analysis-by-synthesis approach. This book distinguishes itself from the existing literature in three ways. First, it not only reviews traditional VC for binary secret images, but also covers recent efforts in improving visual quality for gray scale secret images. Second, not only traditional quality measures are reviewed, but also measures that were not used for measuring perceptual quality of decrypted secret images, such as Radially Averaged Power Spectrum Density (RAPSD) and residual variance, are employed for evaluating and guiding the design of VC algorithms. Third, unlike most VC books following a mathematical formal style, this book tries to make a balance between engineering intuition and mathematical reasoning. All the targeted problems and corresponding solutions are fully motivated by practical applications and evaluated by experimental tests, while important security issues are presented as mathematical proof. Furthermore, important algorithms are summarized as pseudocodes, thus enabling the readers to reproduce the results in the book. Therefore, this book serves as a tutorial for readers with an engineering background as well as for experts in related areas to understand the basics and research frontiers in visual cryptography.

Color Image Processing

Color Image Processing PDF Author: Rastislav Lukac
Publisher: CRC Press
ISBN: 1420009788
Category : Technology & Engineering
Languages : en
Pages : 622

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Book Description
Color Image Processing: Methods and Applications embraces two decades of extraordinary growth in the technologies and applications for color image processing. The book offers comprehensive coverage of state-of-the-art systems, processing techniques, and emerging applications of digital color imaging. To elucidate the significant progress in specialized areas, the editors invited renowned authorities to address specific research challenges and recent trends in their area of expertise. The book begins by focusing on color fundamentals, including color management, gamut mapping, and color constancy. The remaining chapters detail the latest techniques and approaches to contemporary and traditional color image processing and analysis for a broad spectrum of sophisticated applications, including: Vector and semantic processing Secure imaging Object recognition and feature detection Facial and retinal image analysis Digital camera image processing Spectral and superresolution imaging Image and video colorization Virtual restoration of artwork Video shot segmentation and surveillance Color Image Processing: Methods and Applications is a versatile resource that can be used as a graduate textbook or as stand-alone reference for the design and the implementation of various image and video processing tasks for cutting-edge applications. This book is part of the Digital Imaging and Computer Vision series.

Color Technology for Electronic Imaging Devices

Color Technology for Electronic Imaging Devices PDF Author: Henry R. Kang
Publisher: SPIE Press
ISBN: 9780819421081
Category : Art
Languages : en
Pages : 388

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Book Description
An explanation of colour technology for electronic imaging at the system level, including tools for colour image processing, tools for digital image processing that affect image quality, and applications.

Encyclopedia of Image Processing

Encyclopedia of Image Processing PDF Author: Phillip A. Laplante
Publisher: CRC Press
ISBN: 1351032739
Category : Technology & Engineering
Languages : en
Pages : 882

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Book Description
The Encyclopedia of Image Processing presents a vast collection of well-written articles covering image processing fundamentals (e.g. color theory, fuzzy sets, cryptography) and applications (e.g. geographic information systems, traffic analysis, forgery detection). Image processing advances have enabled many applications in healthcare, avionics, robotics, natural resource discovery, and defense, which makes this text a key asset for both academic and industrial libraries and applied scientists and engineers working in any field that utilizes image processing. Written by experts from both academia and industry, it is structured using the ACM Computing Classification System (CCS) first published in 1988, but most recently updated in 2012.

Digital Color Imaging Handbook

Digital Color Imaging Handbook PDF Author: Gaurav Sharma
Publisher: CRC Press
ISBN: 1420041487
Category : Technology & Engineering
Languages : en
Pages : 818

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Book Description
Digital technology now enables unparalleled functionality and flexibility in the capture, processing, exchange, and output of color images. But harnessing its potential requires knowledge of color science, systems, processing algorithms, and device characteristics-topics drawn from a broad range of disciplines. One can acquire the requisite background with an armload of physics, chemistry, engineering, computer science, and mathematics books and journals- or one can find it here, in the Digital Color Imaging Handbook. Unprecedented in scope, this handbook presents, in a single concise and authoritative publication, the elements of these diverse areas relevant to digital color imaging. The first three chapters cover the basics of color vision, perception, and physics that underpin digital color imaging. The remainder of the text presents the technology of color imaging with chapters on color management, device color characterization, digital halftoning, image compression, color quantization, gamut mapping, computationally efficient transform algorithms, and color image processing for digital cameras. Each chapter is written by world-class experts and largely self-contained, but cross references between chapters reflect the topics' important interrelations. Supplemental materials are available for download from the CRC Web site, including electronic versions of some of the images presented in the book.