Which of the following processes would help avoid aliasing while downsampling an image? ()
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Which of the following processes would help avoid aliasing while downsampling an image? ()
图像模糊使得图像变得平滑,在许多情况下,高频成分只占据了图像不重要部分信息,如噪声及微小纹理等,可以通过将图像进行平滑处理以去除这些信息达到低通滤波的效果,高频率噪声滤波掉,从而避免降采样过程中的频率混叠
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