题目内容

The 2-D DFT can be computed by computing 1-D DFT transforms along the rows of the image, followed by 1-D transforms along the columns of the result.

A. 对
B. 错

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The Fourier transform of a real function is conjugate symmetric, which implies that the spectrum has even symmetry about the origin.

A. 对
B. 错

傅里叶频谱的低频主要反映图像的边缘和噪声等细节。

A. 对
B. 错

傅里叶频谱的高频主要反映图像平坦区域中灰度的总体分布。

A. 对
B. 错

根据傅里叶变换的周期性，只需一个周期的变换就可以获得整个变换的频谱。

A. 对
B. 错