Kofax Getting Started with Ascent Xtrata Pro - Manual (Page 232)

Extraction
Ascent Xtrata Pro User's Guide 213
3
Open the Properties dialog box to insert additional sample documents.
a
Select a sample document from the Test Folder or the Training Set. The
Zone Viewer dialog box displays showing the selected document.
b
Return to the Zone Locator Properties dialog box and click Insert Sample
from the General tab to insert the document as a new sample document.
For background removal, you must add at least four more sample
documents.
4
Click Create Info to process the background data. After a few moments the
samples will be processed and you can take advantage of the background
removal feature.