This is the cheapest option and produces the highest-quality results. The only drawback is you lose your book. The way it works is: you send me your book, I unbind it, scan the loose pages, put the image files on a DVD or Blu-Ray disc, and send the disc to you. Your book will be scanned at a resolution of 600 dots per inch.
This option is more expensive, but it has the advantage that your book will return to you exactly as it left you. The way it works is: you send me your book, I place it on a V-shaped cradle, turn the pages one by one, slide a V-shaped glass platen onto the pages to flatten them, take pictures of the pages with two high-resolution cameras, transfer the image files to a computer, put them on a disc, and send the disc to you. Your book will rest on a cradle all the time, and it will never be opened at more than a 90-degree angle. The spine of the book will rest on a flat surface at the bottom of the cradle. The image resolution will be approximately 500 dots per inch.
For each book, you will get a collection of jpeg image files from me. If you choose the post-processing option, I will also crop the images, align them, create margins of equal size, and make a pdf, a djvu, and an OCR Word file for you. I recommend you download WinDjView
and check the déjà vu
version of your book that I will send to you, as djvu is, in my opinion, a much better format than pdf for scanned electronic books.
For black and white books that only contain text, like paperback novels, a resolution of 300 dots per inch is normally good enough. However, the Rustee Technologies book scanner uses 24-megapixel, high-quality cameras which produce images of approximately 500 dpi for A4-sized books. If your book is scanned destructively, the image resolution will be 600 dpi. Chunky paperbacks with a small inner margin or very thick books can be very difficult to scan nondestructively, and the images may experience a small degree of perspective distortion. If you want the best image quality, you should have books of this type scanned destructively. Hardbacks of a reasonable size (less than 800 pages) almost always produce good results.
Page from Gulliver's Travels
, 1870 edition, Worcester Public Library. Scanned by J Borruel using a Rustee Technologies book scanner. You can click on the picture to open a page with the original high-resolution image (24 megapixels minus a little bit of cropping). After the page has loaded, click on the image to view it in full resolution.
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