aseboden.blogg.se - Sattva descreen

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This is less of a preference and more of a way to ensure that very fine print, such as a magazine’s masthead/ impressum, is legible.

No matter the amount of processing, text should never dip below 600 DPI.

(Even if 300 DPI material is eventually needed for extremely large publications to stay under 1GB, the 300 DPI material can be obtained by resizing the 600 DPI material, instead of re-scanning the entire document.) It also ensures that very fine print will not only be legible, but able to be OCR’d. This preserves the screening which can be dealt with later if necessary. 20 years of a large magazine’s print run).

And besides, I’m not made of money, and some online repos may balk at an attempted upload of 7 TB (approx. I could easily scan a 500-page magazine to 30 GB of TIFF files (which I’ve done many times), but it’s not practical to share 30GB per magazine with online repositories. This isn’t because of total size - storage is cheap - but rather because of transfer rates. In 2020, and for the next 5 years at current broadband capacities and growth, a file size of 500MB for giant magazines, or 100MB for modest ones, is appropriate.

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PDF file sizes should not exceed 1MB per page on average.

volume, etc.), I came up with a set of rules and processes for myself that I’ll be following, and would like to share them. While everyone has their own views on what’s important (size vs. However, we’re in possession of several magazines that the original publisher hasn’t archived and aren’t available in the wild, so we decided to experiment with various scanners, software, and methods to see what was possible, while staying within the limits of what is practical.

Some magazines print almost all the way into the binding, leaving only a few millimeters of margin at the gutter, which prevents traditional book scanners, both flatbed and camera-based, from capturing the inner 1 CM of printed material.

The high number of pages in color magazines (300, 400, or even 500 pages per publication) makes using a flatbed scanner a tedious process, as well as resulting in a very large set of data per magazine (if preserving quality is a concern).

Most were printed using screened printing, whose tiny high-contrast dots hurt compression ratios, and produce moiré patterns when scanning at, or resizing to, lower resolutions.

Color magazines are notoriously annoying and difficult to scan to digital form because: However, most of us haven’t started archiving our magazines, because it’s an extremely daunting task. Our goal was to distribute scans of the material as PDF, primarily because of its ubiquity of viewing software, but also because OCR’d text could follow the images, making the magazine searchable without requiring the user to perform OCR.

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RT caraesten: everyone who guts a working old computer to stuff a raspberry pi and a shitty tn panel into it will be judged harshly by God 1 day agoĭemoscene Digital Video Entertainment Family Gaming Home Ownership Lifehacks MindCandy MobyGames Podcast Programming Sociology Software Piracy Technology Uncategorized Vintage Computing Weight Lossĭuring a conversation with one of my archival collectives, the topic of archiving color magazines came up.

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FreddyVETELE 15khz on 8mhz 8086? RetroRacing I still maintain disk2img from that project, which I still use to dump all of my non-protected dos dis… /i/web/status/1… RetroRacing I contributed, but Jeff Leyda was the primary author, and Demonlord cracked most of the images.Trixter on My IBM PCjr Print Media Archiv… My First Taste of CG… on 8088 MPH: We Break All Your… Philip Searle on The Care And Feeding of the M2…

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Newmikeman on How to reasonably archive colo… Trixter on How to reasonably archive colo…

Experiment results and changing tactics.

How to reasonably archive color magazines to PDF.

My IBM PCjr Print Media Archival Project.