Represents a loaded picture and has methods to access meta data. There is a caching mechanism in this class: If data are requested the first time, they are read directly from the files and saved into {@link Picture#cache}. From now on, the data are returned from this cache instead of reading directly from the files for a better performance until {@link Picture#deleteCache()} is called.
@author Stefan T.
A picture represents a physical picture file. Every image stored in Data Crow (such as screenshots) is represented by a picture object.
@author Robert Jan van der Waals
A component that displays an image. The image can be updated in real time to create videos. It can be monochrome or color. To use it, simply create it, populate it with pixels using one or more of the set methods, and call displayImage().
@author Edward A. Lee
@version $Id: Picture.java,v 1.31 2005/07/08 19:59:31 cxh Exp $
@since Ptolemy II 0.2
@Pt.ProposedRating Red (eal)
@Pt.AcceptedRating Red (cxh)
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