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A consumer area array digital camera is used to produce images with resolution from 600 dpi at 4.5 inches x 7 inches down to just 300 dpi for 11 inches x 14 inches works.
To reduce camera bandwidth and storage requirements, digital captures are output from the camera in JPEG format, a notoriously artifactladen format when output directly from a camera (postconversion from TIFF to JPEG using desktop software can generate significantly higher resolution JPEG files).
The purpose of this study is not to criticize or defend either initiatives practices, but rather to evaluate them as peers and illustrate that sometimes these existences may be more nuanced than often believed.
In the meantime, Google Books continues to lead all other access digitization projects in sheer volume of material digitized.
In December 2006, the OCA announced it had reached its 100,000th digitized book ( Internet Archive Receives Grant, n.d.), while by September 2008, Google had reached over seven million books in its holdings, with almost three million of those published prior to 1980.
In preservation digitization, the focus is on the and certain limitations and shortcuts are accepted to achieve the high levels of efficiency necessary.
However, once it had been shown that such mass access campaigns were not only possible, but could be quite successful, the academic community reacted by forming its own initiative, the Open Content Alliance (OCA), which was announced in October 2005 (Kahle, 2005).
Unease about corporate ownership over the digital copies of historic works led the OCA to declare that all of its digitized works would be available for unrestricted use.
Yet, such scale comes at a price, and certain sacrifices must be made to achieve this volume.
With its greater visibility, most studies have focused on Google Books, addressing limitations of its image and metadata quality.
Upon delving deeper into the underpinnings of both projects, we find Google achieves greater transparency in many regards, while OCAs operational reality is more proprietary than often thought.