Technology | Digital Domesday book unlocked A rich digital archive of British life in the 1980s has been brought back to life by researchers from the UK and the US. They have developed a way to access the information gathered by the BBC's Domesday project which had been stored on outdated technology. The project was developed by the BBC to create a computer-based, multimedia version of the Domesday Book, marking the 900th anniversary of the 1086 archive. But the snapshot of in the UK in the mid-1980s was stored on two virtually indestructible interactive video discs which could not be read by today's computers. Preserving the past The team at Leeds University and the University of Michigan in the US say they have now found a way to access this rich digital archive. They have developed software that emulates the obsolete Acorn Microcomputer system and the video disc player. The research is part of the Camileon project. The Domesday Project highlights the problems of digital preservation. Book vs discs
profile 1. Background A large number of companies and individuals, from a variety of industries, participated in the development of the ICC specification which is designed to provide developers and other interested parties with a clear description of the profile format. Device profiles provide color management systems with the information necessary to convert color data between native device color spaces and device independent color spaces. The device profiles obtain their openness by using a well-defined reference colour space and by being capable of being interpreted by any ICC operating system or application that is compliant with the specification. In addition to providing a cross-platform standard for the actual profile format, the specification also describes the convention for embedding these profiles within graphics documents and images. 2. A key component of the specification is a well-defined profile connection space. 3. 3.1 Colorimetric Intents 3.1.1 Media-Relative Colorimetric Intent
Autofocus Grid Projector Z axis measuring with autofocus works by sensing the contrast level in the image of your part. But many surfaces (such as glass, clear plastic, and mirror-like finishes) create images with extremely low, or worse, nonexistent contrast. How can these be measured? With the Grid Projector accessory from OGP. The Grid Projector is available for SmartScope ZIP, SmartScope Quest, SmartScope ATS, and SmartScope Apex video measuring systems. Grid Projector Technology The Grid Projector works by projecting a grid pattern onto the surface of the part undergoing inspection. AdvantagesAllows Z axis measurement of previously "un-measurable" surfaces due to insufficient contrast.Improves measurement repeatability.Ideal for parts with translucent layers.
University Library Digital Collections: About Princeton University Digital Library (PUDL) A collection of high-resolution digital images of materials held by the Princeton University Library and its partners. Princeton University Library Finding Aids The Princeton University Library Finding Aids site provides World Wide Web access to finding aids or descriptive inventories for archival records and manuscript collections held within the University Library. Over 1700 finding aids from the Department of Rare Books and Special Collections, Latin American Ephemera Collections, and the Engineering Library are now available online. The Blue Mountain Project Drawing on Princeton University’s exceptional collections and curatorial and academic expertise, the Blue Mountain Project is a digital thematic research collection of art, music and literary periodicals published between 1848, the year of the European Revolutions, and 1923 – a functional boundary for works presumed to be in the public domain. Papers of Princeton Historical Periodicals
Kaiser Fototechnik - Welcome Vanish: Enhancing the Privacy of the Web with Self-Destructing Data Don Williams : Image Science Associates Don Williams has brought his decades of experience in digital imaging and extensive worldwide involvement in the digital archiving community together to found Image Science Associates. Don worked as a research imaging scientist for Kodak for 25 years until he left the company in 2006. His work there focused on both digital and traditional imaging practices across a number of disciplines that included reconnaissance, microfilm, consumer photography, and professional photography sectors. His passion lies in the digital image archiving community and in providing resources by which good imaging can be easily practiced and understood. He sits on international standards committees and is fully immersed and involved in the digital image archiving community, frequently contributing to the Federal Agencies Digitization Guideline Initiative and sits on the Still Image Working Group advisory board. Don has a bachelor's and a master’s degree in imaging science from Rochester Institute of Technology.
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Spectral Selectivity Spectral Selectivity Spectral selectivity is a technique for creating images which uses intentionally limited ranges of radiation in the ultraviolet, visible or infrared portions of the spectrum. It has uses in artistic and scientific photography. Early day photographers often needed to work around the inherent spectral sensitivity limitations of the photographic materials available to them. Modern photographic materials are available with sensitive to a wide portion of the spectrum, ranging from 250 nanometers (ultraviolet) to 925 nanometers (infrared). The topics linked below provide an introduction to spectral selectivity, some technical information for making use of it and a few typical applications. Digital Imaging in Optical Microscopy - Concepts in Digital Imaging Concepts in Digital Imaging Technology Charge-coupled devices (CCDs), like microprocessor and memory integrated circuits, are fabricated on silicon wafers in a series of elaborate steps using photolithography to define and build various functional elements within the microcircuitry. Each wafer contains tens to hundreds of identical devices, each fully capable of producing a single CCD chip for use in digital cameras. This section of the Molecular Expressions Photomicrography Primer contains links to illustrated discussions of important CCD concepts, which are critical in forming a complete understanding of digital imaging techniques. Anatomy of a Charge-Coupled Device - Digital image sensor technology is centered around the semiconductor charge-coupled device, which is fabricated in a manner similar to that used in the production of integrated circuits ranging from microprocessors to memory chips. Contributing Authors Kenneth R. John C. Questions or comments?
Phase One Partner of the Year: Digital Transitions Welcome to Imatest Camera Scanning | dpBestflow Camera scanning basics With some special hardware, along with some proper techniques, it's possible to make excellent digitizations of film and print originals using a digital camera. The camera's sensor provides excellent resolution for the scan, even in comparison to dedicated film scanners such as Imacon. A DSLR's built-in anti-moire filter also helps in minimizing the appearence of dust and minor scratches present on the media being scanned. You can compare the relative quality of a file made with an Imacon film scanner and a file made with a Canon 1Ds MkII. Camera scanning falls into two basic categories: digitizing film and digitizing prints. Print scans Prints are a more straightforward process than film scans, since they are typically larger, and the scan needs only to reproduce the reflected color and tone. Megapixels When copying prints, it's generally best to use the highest resolution camera that you have available, depending on your intended use of the images. Copy stand