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高斯濾波器(Gaussian filter)是一種低通濾波器[1]脈衝函數的權重呈現為在原點附近服從正態分佈[2]。高斯濾波器具有指數形式的響應特性[3]

圖像大多數的噪聲均屬於高斯噪聲,因此高斯濾波器適用於消除高斯噪聲,廣泛應用於圖像去噪。[4]

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