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mple, you can filter an image to emphasize certain
mented with filtering include smoothing, sharpening,

  

ive   pixel in the output image is determined by applying
a comesponding input pixel. A pixel’s neighborhood is
. (SeeNeighborhood or Block Processing: An Overview for
tering in which the value of an output pixel is a linear

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Called convolution. Convolution is 2 neighborhood

Nb: nboring input pixels. The matrix of weights is called th
sa Correlation kernel that has been rotated 120 c

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