Digital Imaging Technology

2021 ◽  
pp. 1-31
Author(s):  
Katherine Thomson-Jones

In this chapter, I examine one sense in which digital images are digital; namely, in virtue of being made and presented with digital technology. I begin by outlining some general theoretical commitments regarding the nature and conditions of appreciation. Broadly speaking, the appreciation of art is to be understood in terms of the differential exercise of cognitive skills. Such skills can be exercised when an appreciator takes into account the distinctively digital technology involved in both the production and the screening of digital images. I give some important background on the functioning of computers and digital display tools. This background helps us understand the debate surrounding potential aesthetic losses and gains when working creatively with digital, as opposed to analog, tools.

2001 ◽  
Vol 7 (S2) ◽  
pp. 824-825
Author(s):  
John M. Mackenzie

This invited paper will address several emerging technologies that have an impact on scientists moving into digital imaging technology and raise a few concerns about this digital technology that may not have reached our group.The quality of inkjet printers has moved forward at a staggering rate. The latest printers from Epson (the 900 series) have achieved a milestone in image quality that is very significant and yet is difficult to find in the specification sheet. The “dots” which the company claims can be as small as 3 picoliters are sufficiently small that they cannot be seen with the naked eye. with an improved algorithm, the image quality in 1440 × 720 mode is as good as any dye-sublimation printer. The current 980 when printing in 1440 mode prints at twice the speed as the older 900. At only $250, it actually becomes cost effective to replace 900's with 980's solely based on the amount of time that is saved (even at a University).


CytoJournal ◽  
2013 ◽  
Vol 10 ◽  
pp. 22 ◽  
Author(s):  
Walid E. Khalbuss ◽  
Jackie Cuda ◽  
Ioan C. Cucoranu

Digital images are increasingly being used in cytopathology. Whole-slide imaging (WSI) is a digital imaging modality that uses computerized technology to scan and convert entire cytology glass slides into digital images that can be viewed on a digital display using the image viewer software. Digital image acquisition of cytology glass slides has improved significantly over the years due to the use of liquid-based preparations and advances in WSI scanning technology such as automatic multipoint pre-scan focus technology or z-stack scanning technology. Screening cytotechnologists are responsible for every cell that is present on an imaged slide. One of the challenges users have to overcome is to establish a technique to review systematically the entire imaged slide and to dot selected abnormal or significant findings. The scope of this article is to review the current user interface technology available for virtual slide navigation when screening digital slides in cytology. WSI scanner vendors provide tools, built into the image viewer software that allow for a more systematic navigation of the virtual slides, such as auto-panning, keyboard-controlled slide navigation and track map. Annotation tools can improve communication between the screener and the final reviewer or can be used for education. The tracking functionality allows recording of the WSI navigation process and provides a mechanism for confirmation of slide coverage by the screening cytotechnologist as well as a useful tool for quality assurance. As the WSI technology matures, additional features and tools to support navigation of a cytology virtual slide are anticipated.


2000 ◽  
Vol 29 (4) ◽  
Author(s):  
Norbert Lossau ◽  
Martin Liebetruth

“Conservation” and “Digitization” represent key terms from two different worlds. Conservation has overtones of longstanding tradition, carefully applied to holdings of honorable institutions like museums, libraries or galleries to ensure the longevity of their treasures. Digitization has the flavor of new technology, and although it is becoming a more widely accepted strategy for improving access to a lot of different resources, it still comes with imponderabilities in terms of digital asset lifespan, authenticity, etc.


2009 ◽  
Vol 69 (5) ◽  
pp. AB377 ◽  
Author(s):  
Yoshiro Kawahara ◽  
Hiroyuki Okada ◽  
Seiji Kawano ◽  
Masafumi Inoue ◽  
Takao Tsuzuki ◽  
...  

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