GEDI Overview

GEDI is an editor that assists you in ground truthing scanned text documents. Its basic structure involves two types of files, an Image file, and the .xml file associated with it. A series of image files stored in the same directory (folder) can be opened simultaneously. When you begin ground truthing an image, GEDI creates a .xml text file for that image file. The purpose of the .xml file is to store specific attributes, set by the user, for the given image file.

GEDI allows users to enter information about entire pages, or about specific zones on a page. Zones can can be used to mark the locations of text, signatures, logos, etc. Different zone types should be used to label different types of page elements. Information about a particular zone or page can be entered by setting values for attributes. Pages and zone types can have any number of attributes associated with them, and each instance of a page or zone can have its own values for the attributes. For labeling text, the pre-defined DL_TEXTLINEGT zone type should be used. Another type of information that can be entered is the reading order of a page.

For specifics about any particular feature of GEDI, please select it from the table of contents to the left. Some topics have sub-topics and can be expanded by clicking on the plus sign next to them.

If you are already familiar with GEDI, you may still want to take a look at Appendix C: Modification History.