MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur télécharger pdf (Page 228)

8 Example Applications

9 Use the Constant block to define the size of the image of the cat sculpture.

Set the Constant value parameter to

single([41 41]).

10 Use the Mux block to concatenate the location of the maximum value and

thesizeoftheimageofthecatsculpture into a single vector. You use this

vector to define a rectangular region of interest (ROI) that you pass to the

Draw Shapes block.

11 Use the Draw Shapes block to draw a rectangle around the p ortion of each

video frame that best matches the image of the cat sculpture. Accept the

default parameters.

12 Use the Video Viewer block to display the video stream w ith the ROI

displayed on it. Accept the default parameters.

The Vi

deo Viewer block automatically displays the video in the Video

Viewe

r window when you run the model. Because the image is represented

8-6

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MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur Page 228