On 12/1/06, Ilmari Karonen nospam@vyznev.net wrote:
What do you need TIFF files for that PNG can't handle?
I'm genuine interested; there are things the TIFF format can do that PNG can't, but I'd like to know which features you need and why.
I'm not sure of all the technical details, but see the Wikisource discussion at http://en.wikisource.org/wiki/Wikisource:Scriptorium/Archives/2006/11#TIFF_f....
From what I understand, PNG's aren't all that great for photographs (or in
the Wikisource case, scans of pages of books and other documents) and don't work well with scanset, and JPEG's are ridiculously large for the same amount of information as is in a TIFF. Discussion on Commons ( http://commons.wikimedia.org/wiki/Commons:Village_pump#TIFF_files.3F) seemed to suggest that the real problem was image size, but again, it looks like JPEG's would end up being bigger than the TIFF's.
At the end of the day, we'd like to be able to store large images that are as detailed as possible, and be able to use them for proofreading on Wikisource.
Nathaniel