Table of Contents
- Geometric Transformations & Image Warping
- Affine Transformations
- Projective Transformations
- Polynomial Warping
- Practical Applications
- Advanced Image Registration
- Intensity-Based Methods
- Feature-Based Approaches
- Multimodal Registration
- Optimization Techniques
- Hough Transform & Shape Detection
- Line Detection
- Circle Detection
- Ellipse & General Shape Detection
- Parameter Space Analysis
- Feature Extraction & Matching
- SIFT/SURF Features
- ORB & FAST Features
- Feature Matching Strategies
- Outlier Rejection
- Practical Exercises & Projects
- Image Stitching Challenge
- Object Detection System
- Document Alignment
- Industrial Inspection Case Study
- Performance Optimization
- Vectorization Techniques
- Parallel Processing
- GPU Acceleration
- Next Steps & Roadmap
1. Geometric Transformations & Image Warping
1.1 Affine Transformations
I = imread('peppers.png');
tform = affine2d([1 0.3 0; 0.2 0.9 0; 0 0 1]);
outputImage = imwarp(I, tform);
montage({I, outputImage});
title('Original vs Affine Transformed');
Key Parameters:
- Rotation matrix (
[cosθ -sinθ; sinθ cosθ]
)
- Shear components
- Translation vector
1.2 Projective Transformations
originalPts = [1 1; 512 1; 512 384; 1 384];
distortedPts = [50 30; 450 80; 420 350; 80 300];
tform = fitgeotrans(originalPts, distortedPts, 'projective');
warped = imwarp(I, tform);
imshow(warped);