Digital image processing

Assignments done during course Digital image processing at IIIT Hyderabad during fall 2020.

Contents

Assignment 0

• Basic image processing: OpenCV

Assignment 1

• Chroma-keying
• Bit-Quantization
• Bit-plane slicing
• Linear Contrast-Stretching
• Histogram equalization
• Histogram matching
• Gamma Transformations
• Examples: Concatenating image: relighting, retoning

Assignment 2

• Linear spatial filters
• low pass average
• Median
• Example: Salt/pepper Noise removal in images
• Edge detection
• Canny-edge
• Sobel
• Prewitt
• Roberts
• Laplacian
• Bilateral-filtering
• Cross-bilateral filter
• Example: giving cartoonish effect(animating) images
• Adaptive Thresholding from scratch
• Fourier Transform
• 2D DFT
• Recusrsive FFT
• 2D FFT
• IFFT
• Example: Noise Removal in images: Converting to fft domain

Assignment 3

• Skeletonization
• Morphological operations
• Connected components: two-pass algorithm
• Label maps
• Image rotation