In class I mentioned that "high frequencies in an image correspond to edges". This is a bit of a lose statement... can someone clarify.

whdawn

According to my understanding, I think the high frequencies in an image represents the details there. Which can be computed by 2d fourier transform, or similar transforms.

According to the formula, we can know the high frequency parts mean the value of adjacent pixels is very different. So it means the edges of an image.

In class I mentioned that "high frequencies in an image correspond to edges". This is a bit of a lose statement... can someone clarify.

According to my understanding, I think the high frequencies in an image represents the details there. Which can be computed by 2d fourier transform, or similar transforms.

According to the formula, we can know the high frequency parts mean the value of adjacent pixels is very different. So it means the edges of an image.