BM2404 DIGITAL IMAGE PROCESSING Lecture Notes for BME - Seventh (7th) semseter
BM2404 Lecture Notes
UNIT I DIGITAL IMAGE FUNDAMENTAL
Elements of digital image processing systems - Elements of visual perception – image
sampling and quantization – basic relationships between pixels - matrix and singular value
representation of discrete images.
UNIT II IMAGE TRANSFORMS
1-D DFT - 2-D DFT – DCT – DST – Walsh - Hadamard – Haar – Slant – KL – SVD and
UNIT III IMAGE ENHANCEMENT
Gray level transformation – Histogram processing – enhancement using arithmetic/logic
operation – spatial filtering – smoothening and sharpening spatial filter – smoothening in
frequency domain filter – homomorphic filtering
UNIT IV IMAGE RESTORATION AND RECOGNITION
Image degradation models – unconstrained and constrained restoration – inverse filtering
– LMS filter – geometric mean filter – geometric transformation – pattern classes – optimal
statistical classifier – neural networks and its uses in image processing.
UNIT V IMAGE COMPRESSION
Image compression models – elements of information theory – error free compression –
lossy compression – run-length – Huffman coding – shift codes – arithmetic coding – bit
plane coding – transform coding – JPEG standards – MPEG standards - wavelet
transform – predictive techniques – block truncation coding schemes – facet modeling.
Image segmentation – detection of discontinuities – edge linking and boundary detection –
thresholding – region based segmentation – segmentation by morphological watersheds –
use of motion in segmentation.
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