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Nguyễn Công Phương
DIGITAL IMAGE PROCESSING
Affine and Logical Operations, Distortions, and Noise in Images
Contents
I. Introduction to Image Processing & Matlab II. Image Acquisition, Types, & File I/O
III. Image Arithmetic
IV. Affine & Logical Operations, Distortions, & Noise in Images V. Image Transform
VI. Spatial & Frequency Domain Filter Design VII. Image Restoration & Blind Deconvolution VIII. Image Compression
IX. Edge Detection
X. Binary Image Processing
XI. Image Encryption & Watermarking XII. Image Classification & Segmentation XIII. Image – Based Object Tracking
XIV. Face Recognition
XV. Soft Computing in Image Processing
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Image Arithmetic
1. Affine Operations a) Translation
b) Rotation c) Scaling
2. Logical Operators 3. Noise in Images
4. Distortions in Images
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Affine Operations
• An affine operation/transformation maps variables into new variables by applying a linear combination of translation, rotation, and scaling (TRS) operations
x y2
= Ax1 +B 1
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Translation
x y2
=
1
0
0x1 + 1 1 2
• Pixel movement by b1 in x & b2 in y direction. • Used to improve visualization of an image.
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