A rather large number of SDF demonstrations have been developed. These can serve as valuable illustrations of the possibilities. Almost every primitive is illustrated in the demos. Because of the large number, the demos are organized into a set of libraries. Certain demos may appear in more than one library.
The demos in this library assume that a program called ptplay is in your path, and that it accepts data of an appropriate format and will play it over the computer sound card at an 8 kHz sample rate. The samples are written into a file before they are played. Since a large number of samples must be generated, these demos can take some time to run.
The demos in this library read images from files on the hard disk, process them, and then display them. Some of the demos process short sequences of images, thus illustrating video processing in MLDesigner. They all use the image classes described in
Image processing primitives
. The set of demos in this library does not reflect the richness of possibilities. See the DE domain for more image and video signal processing applications in the context of packet-switched network simulations. The video demos require that the Utah Raster Toolkit be installed and available in the user’s path.
These systems demonstrate the use of matrix particles in MLDesigner. Matrices are also used in the SDF domain to represent images. See
Image processing demos
. The demonstrations below are primarily to test matrix operations.