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Multivariate Statistics
지구물리정보처리및실습 2004년 1학기 3월 24일 수요일 11시 Multivariate Statistics
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You have three-band images. Your tasks are to:
1) make histogram of each band, 2) find mean, variance and standard deviation of each band, 3) calculate covariance matrix of three bands, and 4) calculate correlation matrix of three bands.
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Multispectral Satellite Image
5 3 1 7 2 4 6 4 2 1 5 6 3 7 5 3 2 7 4 6 1 DN range = [0, 7], nrow=10, ncol=10, nband=3, N=100
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Histogram – Band 1
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Histogram – Band 2
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Histogram – Band 3
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Mean, Variance, STD Mean
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Covariance Matrix c11 c12 c13 c21 c22 c23 c31 c32 c33
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Correlation Matrix ρ11 ρ12 ρ13 ρ21 ρ22 ρ23 ρ31 ρ32 ρ33
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