Digital Image Processing notes
UNIT- I
Digital image fundamentals and Image Transforms
- Digital Image through scanner
- Concept of gray levels
- Gray level to binary image conversion
- Sampling and quantization
- Relationship between pixels
- 2D FFT and its Properties
- Walsh transform
- Hadamard Transform
- Discrete cosine Transform.
- Haar transform.
- Slant transform
- SVD and Hoteling transform.
UNIT- II
Image enhancement in spatial domain and Frequency domain
- Point processing.
- Histogram processing
- Spatial filtering
- Enhancement in frequency domain
- Image smoothing
- Image sharpening,
- Image enhancement using Fuzzy logic.
UNIT- III
Color image processing and Restoration:
- Pseudo color image processing
- full color image processing
- Image Restoration Degradation model
- Algebraic approach to restoration
- Inverse filtering
- least mean square filters
- Constrained Least Squares Restoration
- Interactive Restoration.
UNIT- IV
Segmentation and Thresholding:
- Image segmentation
- Detection of discontinuities
- Edge linking and boundary detection Thresholding.
- Region oriented segmentation
- edge detection using Fuzzy logic.
UNIT- V
Image Compression Techniques
- Image compression Redundancies and their removal methods
- Fidelity criteria
- Image compression models
- Source encoder and decoder Error free compression
- Lossy compression
- Case study in Image watermarking
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