This page describes the requirements to digilib resulting from the functional specifications of the Scholarly Workbench (SWB) applications.

Functionalities[edit]

Current functionalities[edit]

Following functionalities are provided by digilib:

Zooming functionality (zooming in, zooming out, framing of a zoom area, switching back to see the whole picture, left, right, up and down navigation within the zoomed in picture)
Setting of maximal 10 marks per picture, which will be transfered to the UML (this marks will be saved in the form of coordinates, not pixels)
"Original Size" functionality: The user has to measure his monitor. On this basis, the original size of the picture content will be displayed. This enables an impression of the real size of the photographed object.
"Look up Table" functionality: The colors of the pictures can be changed to make the content more precisely. This is related to the "Negativ" functionality.
A user interface for the creation of structural markups for a picture (e.g the linking from a special point in one picture to another picture). This functionality was used for the Einstein Exhibition. The navigational arrows represents links between different pictures.

Data formats:

Currently, tiff, png and jpeg will be supported by digilib. For hight resolution pictures, jpag works best.

Tiles: Pictures will be separated in tiles, which can be scanned separately. Therefore, the call for such a picture will be faster in its performance.

In this application, a predefined set of human faces is stored and displayed to the users. The following conditions are given:

Every image (some thousands) now exists in two formats (normal and large).
A third size (thumbnail) is also needed, but can be created initially by some batch process. Digilib is not needed for this, because there will not be any new datasets after initialization.
The images are in a digilib compatible format, therefore no conversion is needed.

The following requirements have to be fulfilled (this list will be accomplished, when the specification is completed):

The images will not be publicly available, including thumbnails.
There has to be an opportunity to hide certain datasets even for authorized user (maybe deletion would be the best way).
The digilib toolbar will have to be customized due to graphical design and functional restrictions.
The zoom functionality probably should be available.
No modifying functionality is planned, but there will be some way to annotate the images.

((coming soon))