Two-dimensional Fourier Transform

Raw data file

• plain pgm(Portable Gray Map) format(P2 pgm)
• raw pgm(Portable Gray Map) format(P5 pgm)
• png(Portable Network Graphics) format
• gnuplot 3D data format

[Hint: This data is generated by a sum of three six sinusoidal patterns and random noise.]

[Note]

   (1) In your report, describe the procedure using equations as well as the results of figures.
       Furthermore, show the discussions.
   (2) Append the program code you write.
       (If the structure of codes can be understand easily,
        you can use any kind of computer language, e.g. Fortran, C, Mathematica, etc.)
   (3) The unit of axes of the original images are pixel.
       Show the unit of estimated peaks.

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