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Preparation – adding noise to board-orig.bmp:
- Noise 1: Salt&Pepper (25%)
- Noise 2: Gauss(20%,m=20,viarance=400)
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Methods to be developed and tested:
- Alpha-trimmed mean filter
- Adaptive median filter
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Evaluation of results
- Co-occurrence matrix (共生矩阵)
- 不变矩
$\psi_1$ ~$\psi_7$
- Task1:
- Read and display “Up or Down.bmp” file
- Write “U” or “D” into this Bmp as your answer
- Save 2) as an answer.bmp
- Task2: For tsukuba-left.bmp(gray, 8bits/pixels, 384*288 pixels)
- Bicubic interpolation into 1152*864 pixels
- Rotate +35 degree
- Homomorphic Filtering (同态滤波器)
- DFT and IDFT myDFT2.m, myIDFT2.m
- Histogram equalization (直方图均衡) myhisteq.m