Tested samples

To view the tested samples and to manipulate with them, you must be able to work with DjVu files. This is possible thanks to plug-ins installed in your browsers. The below indicated files are compressed losslessly with the JB2 scheme of the DjVu format.

To install the necessary plug-ins, go to the AT&T page to have the newest version.

CCITT samples

Sample no. 1
Sample no. 2
Sample no. 3
Sample no. 4
Sample no. 5
Sample no. 6
Sample no. 7
Sample no. 8
Sample no. 9 (10)

Comparison of DJVU JB2 lossless and lossy options (Fig. A)
Comparison of results of lossy and aggressive options of DJVU JB2 (Fig. A)
A page from a 19th century Czech journal used for tests
A page from a 19th century German newspaper (Bohemia) used for tests
First page of a printed conference paper - scanned from original
First page of the same conference paper - computer generated image
A scanned page of medical instruction used for tests

After installation you simply click on the links and work with the files. When having the DjVu image loaded, you may find interesting to explore the menu displayed after having done the right click on the mouse.