mar, 09 Feb 2010, David Mitchell skribis: > There appears to be some cross compatibility issues with .JPF and .JP2 files. > > I could not get ImageMagick to read .JPF or .JP2 files created by Photoshop. > > I could get Photoshop to read .JP2 files created by ImageMagick, but not .JPF > files created by ImageMagick. > > QuickTime Player will read all of them. > > I found this an interesting article: > > http://en.wikipedia.org/wiki/Jpeg2000
The jpeg2000 is particularly size-efficient in scanning books (black and white) but unpopular due to its license issue, I once saw a chinese company scanned lots of chinese book for its commercial ebook reader library using this format but changing the file extension and a few bytes in image header in order to avoid paying royalty to jpeg2000 license holders, IBM, I guessed. -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
