Hi, I think that the alternatives for wavelet based compression of geospatial imagery are MrSID, ECW and JPEG2000. I wouldn't be very afraid of the submarine patents, JPEG2000 has been there a long time already and it is rather widely used for geospatial and medical imagery. Digital cinema will use JPEG2000 as well. I wonder how long those submarine patent holders would wait with their claims? JPEG2000 is fine and extremely flexible format, but just the flexibility makes it a bit tricky to use. I have been playing several years with JPEG2000 and I have about 3 terabytes JPEG2000 imagery I can use for testing if someone gets interested in adding JPEG2000 support to OpenJUMP. To have something to compary with, www.kakadusoftware.com has free demo utilities, including compression/decompression utilities and a fast JPEG2000 viewer. The viewer is for Windows only because of some platform dependent accelaration code, but other utilities work with Unix/Linux/Mac as well. Usage examples shipped with demos give also an idea about the flexibility of JPEG2000 standard :) I don't know if there are other Open source Jpeg2000 libraries than Jasper. Some major commercial ones are made by Aware, Kakadu, Luratech and Pegasus. Lizardtech and Ermapper (MrSID and ECW makers) support JPEG2000 as well in their SDKs. I do not know the pricing of other SDKs, but I suppose that individual non-commercial Kakadu license worth 250 Australian dollars would be enough for OpenJUMP. The web page says 'This license is sufficient for the development and distribution of JPEG2000 "freeware".' With ERMapper ECW/JPEG2000 the situation may be unclear now because Leica Geosystems bought the company. I would really like to see some day a GIS application supporting image streaming with JPIP protocol, which is now an accepted part of JPEG2000 standard. Kakadu demos include JPIP server as well. If someone gets interested I can send a link to my JPIP server that can be accessed with Kakadu viewer, or with the IAS viewer by ITT Visual Information solutions http://www.ittvis.com/ias/index.asp?
-Jukka Rahkonen- > -----Alkuperäinen viesti----- > Lähettäjä: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Puolesta Sunburned Surveyor > Lähetetty: 17. heinäkuuta 2007 2:24 > Vastaanottaja: List for discussion of JPP development and use. > Aihe: Re: [JPP-Devel] GeoJP2 > > This is interesting. It sounds like the JPEG 2000 committee didn't > know if there were submarine patents, and I wonder if this was stated > by the committee as a way to deflect liability. > > Is there any opinion on whether there is a danger of the JPEG 2000 > format being shot down by a patent claim? Is there a good alternative > to the format? > > The Sunburned Surveyor > > On 7/13/07, Larry Becker <[EMAIL PROTECTED]> wrote: > > See the Wikipedia article on JPEG 2000 for comments on > legal issues re: JP2000: > > > > http://en.wikipedia.org/wiki/JPEG_2000#Legal_issues > > > > It seems OK, but it pays to be informed. > > > > Larry > > > > > > On 7/13/07, Michaël Michaud <[EMAIL PROTECTED]> wrote: > > > Paul Austin a écrit : > > > > > > >Has anyone done any work with GeoJP2 in Java or JUMP? > > > > > > > > > > > Not that I know, I think it would be a great replacement > for ecw and > > > mrsid which are proprietary formats > > > > > > Michaël > > > > > > >Paul > > > > > > > > >------------------------------------------------------------- > ------------ > > > >This SF.net email is sponsored by DB2 Express > > > >Download DB2 Express C - the FREE version of DB2 express and take > > > >control of your XML. No limits. Just data. Click to get it now. > > > >http://sourceforge.net/powerbar/db2/ > > > >_______________________________________________ > > > >Jump-pilot-devel mailing list > > > >Jump-pilot-devel@lists.sourceforge.net > > > >https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > > > > > > > > > > > > > > > > > > > > -------------------------------------------------------------- > ----------- > > > This SF.net email is sponsored by DB2 Express > > > Download DB2 Express C - the FREE version of DB2 express and take > > > control of your XML. No limits. Just data. Click to get it now. > > > http://sourceforge.net/powerbar/db2/ > > > _______________________________________________ > > > Jump-pilot-devel mailing list > > > Jump-pilot-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > > > -- > > http://amusingprogrammer.blogspot.com/ > > > > > -------------------------------------------------------------- > ----------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > -------------------------------------------------------------- > ----------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
