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Which of the following process

[单选题]

Which of the following processes would help avoid aliasing while downsampling an image? ()

  • Image sharpening

  •  Image blurring

  • Median filtering where you replace every pixel by the median of pixels in a window

  • Histogram equalization

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
发表于 2023-05-10 17:38:36 回复(0)