MATLAB VIDEO AND IMAGE PROCESSING BLOCKSET 3 Guida Utente Pagina 190

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7 Analysis and Enhancement
13 To blur th
eimage,double-clickthe2-D FIR Filter block. Set Coefficients
paramet
er to
fspecial('gaussian',[15 15],7) and then click OK.
The
fspecial('gaussian',[15 15],7) command creates two-dimensional
Gaussian lowpass filter coefficients. This lowpass filter blurs the image by
removing the high frequency noise in it.
14 Run the model.
A blurre
d version of the original image appears in the Video Viewer
window
. The following image is shown at its true size.
7-34
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