# Fourier Matching 2

Please Log In for full access to the web site.

Note that this link will take you to an external site (

`https://shimmer.csail.mit.edu`) to authenticate, and then you will be redirected back to this page.

Note that this exercise is intended to be solved by hand, without the use of computation.

Consider the following 7 images (labeled 1 through 7):

1 |
2 |
3 |

4 |
5 |
6 |

7 |
||

Each of the following 7 images represents the *magnitudes* of the DFT
coefficients associated with one of the above images. We have labeled the transforms
as A through I):

A |
B |
C |

D |
E |
F |

G |
||

Which transform matches with each image? Enter a sequence of letters in the
box below. For example, entering `GDIC...`

would imply that `G`

matches with
`1`

, `D`

matches with `2`

, `I`

with `3`

, `C`

with `4`

, ...

Matching letters: