MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guide de l'utilisateur Page 204

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7 Analysis and Enhancement
blocks, see the R ead Binary File, 2-D FIR Filter, and Video Viewer block
reference pages in the Video and Image P rocessing Blockset Reference.For
more information about the Filter Design and A nalysis Tool (FDATool), see
the Signal Processing Toolbox documentation. For information about the
ftrans2 function, see the Image Processing Toolbox documentation.
Adjusting the Contrast in Intensity Images
This example shows you how to modify the contrast in two intensity images
using the Contrast Adjustment and Histogram Equalization blocks.
1 Create a new Simulink model, and add to it the blocks shown in the
following table.
Block Library Quantity
Image From File Video and Image Processing Blockset
> Sources
2
Contrast
Adjustment
Video a nd Image Processing B lockset >
Analysis & Enhancement
1
Histogram
Equalization
Video a nd Image Processing B lockset >
Analysis & Enhancement
1
Video Viewer Video and Image Processing Blockset
>Sinks
4
2 Place the blocks so that your model resembles the following figure.
7-48
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