Update README.md

Author: vikrampande7

README.md

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 "# blob-detector" 
+This project was a part of course NCSU ECE 558: Digital Imaging Systems.
+- A Laplacian Blob Detector was implemented from scratch.
+-  Algorithm Outline:   
+   - Generated Laplacian of Gaussian filter.
+   - Generated Laplacian Scale Space with Convolution.
+   - Performed Non-Max-Suppression.
+   - Drawn circles around maxima points.