MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur télécharger pdf (Page 30)

1 Gettin g Started

The Solver, w h ile in scheduler mode, uses a block’s sample time to determine

when the code behind each block is executed. For example, if the sample

time o f a Video From Workspace block is

0.05, the Solver executes the code

behind this block, and every other block with this sample time, once every

0.05 second.

Video Duration and Simulation Time

The duration of the simulation is controlled by the Stop time parameter —

not the input video. If you want the simulation to run for the duration of the

input video, you must adjust the Stop tim e parameter. If your video is being

cropped, increase the parameter value. If your video is com p lete and the

display window is black, decrease the parameter value. To view the first N

frames of your video, set the Stop time parameter to ( N-1)*T

,whereT

thesampletimeofyoursourceblock.

You can access the Stop time parameter in the model window, as shown in

the following figure, or on the Solver pane of the Configuration dialo g bo x.

For more information, see “Solver Pane” in the Simul ink documentation.

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MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur Page 30