XỬ LÝ ẢNH TRONG CƠ ĐIỆN TỬ
Machine Vision
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TRƯỜNG ĐẠI HỌC BÁCH KHOA HÀ NỘI
Giảng viên: TS. Nguyễn Thành Hùng
Đơn vị: Bộ môn Cơ điện tử, Viện Cơ khí
Hà Nội, 2021
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Chapter 5. Morphological Image Processing
1. Preliminaries
2. Erosion and Dilation
3. Opening and Closing
4. Some Basic Morphological Algorithms
Rafael C. Gonzalez, Richard E. Woods, “Digital image processing,” Pearson (2018).
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1. Preliminaries
Rafael C. Gonzalez, Richard E. Woods, “Digital image processing,” Pearson (2018).
➢Morphological operations are defined in terms of sets.
➢In image processing, we use morphology with two types of sets of pixels: objects and structuring
elements (SE’s).
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1. Preliminaries
Rafael C. Gonzalez, Richard E. Woods, “Digital image processing,” Pearson (2018).
❖Reflection
Structuring elements and their reflections about the origin (the x’s are don’t care elements, and
the dots denote the origin). Reflection is rotation by 1800of an SE about its origin.
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1. Preliminaries
Rafael C. Gonzalez, Richard E. Woods, “Digital image processing,” Pearson (2018).
❖Translation
(a) A binary image containing one object (set), A. (b) A structuring element, B.
(c) Image resulting from a morphological operation.