Presentation State (PS) objects serve the following purposes:

• Consistent display of images on various devices and media
• Storage of specific settings for display (contrast transformations, geometric transformations)
• Storage of annotations
• Special display of multiframe images

Presentation State objects do not include actual images, but a reference to one or more images.

Presentation State objects, in addition to LUTs, display parameters, and annotations, contain other tags, such as Patient/Study/Series info, Referenced Image UIDs, etc. ImageGear loads all tags from Presentation State object into a metadata tree, which is available to the application. 

This section provides information about the following:

• Consistent Display of Images
• Contrast and Geometric Transformations
• Annotations
• Presentation State Objects