'Discrete derivative finite difference' presentation slideshows

Image Processing

Image Processing. What is an image?. We can think of an image as a function, f , from R 2 to R: f ( x, y ) gives the intensity at position ( x, y ) Realistically, we expect the image only to be defined over a rectangle, with a finite range: f : [ a , b ] x [ c , d ] ? [0,1]

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EE 4780

EE 4780. Edge Detection. Detection of Discontinuities. Matched Filter Example >> a=[0 0 0 0 1 2 3 0 0 0 0 2 2 2 0 0 0 0 1 2 -2 -1 0 0 0 0]; >> figure; plot(a); >> h1 = [-1 -2 2 1]/10; >> b1 = conv(a,h1); figure; plot(b1);. Detection of Discontinuities. Point Detection Example:

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Announcements

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Announcements

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