Update README.md

Author: cxy1997

README.md

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 # Digital-Image-Processing-Algorithms
 SJTU CS386 Digital Image Processing course project
+Contents:
+- Project 1: Histogram Equalization
+- Project 2: Enhance Images with Spatial Filters
+- Project 3: Fourier Transform & Filtering in Frequency Domain
+- Project 4: Noise Models & Noise Reduction
+- Project 5: Image Restoration with Inverse Filter & Wiener Filter
+- Project 6: Geometric Transform with Nearest Neighbor and Bilinear Interpolation Methods
+- Project 7: Image Compression based on Discrete Cosine Transform & Wavelet Transform
+- Project 8: Morpholigical Processing
+- Project 9: Edge Detection (Roberts, Prewitt, Sobel, Marr-Hildreth and Canny edge detector) & Image Segmentation (Otsu’s method)
+- Project 10: Image Representation (boundary following & chain code) & Description by Principal Components