The shared shape dictionary functions inadequately

[jwilk]

Issue reported by sumacs at Bitbucket:

Hi. When I create a djvu file with a shared shape dictionary, the resulting dictionary files are all 21 bytes in size. The chosen number of pages per dictionary is correct. According to notifications, all dependencies are satisfied for didjvu and for the program minidjvu. I am using the Linux distro Lubuntu with version 0.2.7 of didjvu and version 0.8 of minidjvu. The Gamera version is 3.3.3. Lubuntu uses the Ubuntu repositories. I tried using the 0.6 version of didjvu and got the same result. All python-related programs and dependencies look to be all right. The minidjvu program on its own does create a dictionary that works correctly. Perhaps the two programs are not connected properly to each other, but the sudo apt-get program was used to install both successfully. For me this challenge is major because I would like to create the best djvu files possible in terms of making full use of the compressions available.. Your program is the only one I have seen that includes not only the dictionary, but also the ability to subsample the fg and the bg. The server any2djvu offers the first option only, and the special program djvudigital (gsdjvu) allows fg and bg adjustments, but no dictionary.

Any suggestions regarding this issue are appreciated.

Thanks for creating this useful program.

Stephen Jones Toronto

[jwilk]

Thanks for the bug report.

It might be indeed the case that didjvu is doing something wrong here.

Does using --lossy help?

[jwilk]

Comment submitted by sumacs at Bitbucket:

Using the --lossy option fixed this problem. Thanks. Using other loss-related options such as losslevel and clean also fixed the problem.

Thanks again.

Stephen Jones

[jwilk]

Should be fixed in 0.9.1.