From: Jon Noring <jon@noring.name>
Btw, if anyone here has made, and plans to make, 600 dpi (optical) greyscale or color scans of any public domain books including the book covers (and this includes books printed between 1923 and 1963 which may be public domain), I'll gladly accept donations of them on CD-ROM and DVD-ROM.
I have scanned about 3400 pages of math text. 300 dpi only as it looked ok enough. The images are in CDs and my CDROM device has been broken for three months already. Four of the books are journal books (600 pages per book) of Mathematische Annalen. Random pages of them are also scanned with 600 dpi because I wanted to extract all the fonts. Unfortunately, I decided to wait until a digital camera would appear, because it would be needed for the good quality fonts (600 and 1200 dpi on scanner looks blurry compared to camera). Yes, unfortunately, because our library sold two of the four books as a standard book cleaning procedure. In the four books, there were rare letters which appeared only in one page of one book. If my CDs loose their data, I cannot rescan them. The images are in zip files which are very fragile itself. E.g., removing two bytes from the end or removing the TOC of zip makes the zips unusable. And libraries want more tax payer's money! For what? Why libraries which destroys books should be supported at all? Better give the money to institutions who preserve the history. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software