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Restored image. FFT. Filter. Inv. FFT. Raw image. off- center. LogF. center. Pn1: H (i,j) > H ref & I (i,j) > I ref. further screening with 2 clustering criteria: Pn2 -> Pn3. Pn2. C 0. further screening with 2 clustering criteria: Cn1 -> Cn2. Cn1: Gaussian
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Restored image FFT Filter Inv. FFT Raw image off- center LogF center Pn1: H(i,j) > Href & I(i,j) > Iref further screening with 2 clustering criteria: Pn2 -> Pn3 Pn2 C0 further screening with 2 clustering criteria: Cn1 -> Cn2 Cn1: Gaussian fitting F(i,j) > 0 final set of noisy pixels identified Restored FFT CVAR test Restored LogF (i,j)