LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
September 2005
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2005.09.08 20:07 "Re: creating JPEG file", by Bob Friesenhahn
On Thu, 8 Sep 2005, Philip Watkinson wrote: > I have some image data with the following conditions: > > 1. There can be 1 or more tiles for each image. > 2. For each tile, there are 4 planes. Each plane corresponds to the > components in the CYMK colour space. > 3. The data for each plane is JPEG encoded. Yup, sounds feasable within the specification. > Using Libtiff 3.7.1, is it possible to create a single JPEG image file? > If so, is there sample code available? What exactly do you mean by "single JPEG image file". I assume that development GraphicsMagick 1.2 can be used to read/write files like you describe via libtiff although I have not specifically tested this combination with JPEG compression. Support is present for all three of your conditions. GraphicsMagick is open source and free to use for any purpose. I definitely recommend using version 3.7.3 rather than 3.7.1 since it has fewer bugs (see ChangeLog for 3.7.3). Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/