基带频率响应 baseband frequency response
- 这种方法在对角线方向上的频率响应特性较好,而在水平和垂直方向上对基带外的垂直频谱衰减不够,导致放大图像中的方块效应。
But there is mosaic impact in the enlarged picture because this method can't adequately attenuate the vertical frequency off the Base Band in the horizontal and vertical direction.