Image Denoise Methods

1. Spatial Domain
	A. Non-linear Filter
		a. Median
		b. Spatial Median
		c. Weighted Median
	B. Linear Filter
		a. Mean
		b. Wiener
2. Transform Domain
	A. Non-adaptive Data Transform
		a. Spatial Domain
			1. Linear Filtering
			2. Non-linear Threshold Filtering
			3. Wavelet Coefficient Model
			4. Non-orthogonal Wavelet Transform
		b. Wavelet Domain
			1. Linear Filtering
				a. Wiener
			2. Non-linear Filtering
				a. Visushrink
				b. Bayeshrink
				c. Sureshrink
	B. Adaptive Data Transform
		a. ICA
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