lecture09

lecture09 - 1 ELEC317 Digital Image Processing Lecture 9...

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Unformatted text preview: 1 ELEC317 Digital Image Processing Lecture 9 Morphological Processing Introduction to Morphological Processing Morphology – Study of forms of plants/animals – In image processing: Study structure or topology of objects Basic operations Let X be original image, pixel values = 0 or 1. B is another image with certain structure Normally, B is a black and white bi-level image. e.g. Denote B ( x , y ) – The translation of B so its origin is at ( x , y ). e.g. x y Origin (0,0) B : x y B (2,3) B (2,3): (2,3) 2 Erosion This is set of points (x, y) such that B(x, y) is included in X X B } ) , ( : ) , {( X y x B y x ⊂ = ∆ e.g.1 e.g.2 x y B (1,0) X : x y Origin B : y x X B : X : Origin B : X B : 3 Dilation This is set of points (x, y) such that B(x, y) and X intersects: } ) , ( : ) , {( φ ≠ ∩ = ⊕ ∆ X y x B y x B X e.g.1 e.g.2 x y Origin B : x y X : B X ⊕ : y x X : Origin B : B X ⊕ : 4 Examples of some morphological operations 5 Examples of some morphological operations 6...
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lecture09 - 1 ELEC317 Digital Image Processing Lecture 9...

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