This is an index to simple test images and their transforms. The data
are in the WPI CCC directory /cs/cs545/notes/transforms/
. Note,
borders have been drawn around all original images and histogram equalization
has been applied to all transform images on this page. These changes, made
for visual clariaty, have not been applied to the images in the directory.
Also note that the Fourier transforms are given in two forms: with the origin at the top left of the image and with the origin centered in the image.

Original Image, even.img 

Hartley Transform, h_even1.img . A text file of the pixel
values is in h_even.txt . 

Log of Hartley Transform, h_even2.img 

Magnitude of Fourier Transform, f_even1.img . A text file
of the pixel values is in f_even.txt . Origin at top left 

Log of Magnitude of Fourier Transform, f_even2.img . Origin
at top left 

Phase of Fourier Transform, f_even3.img . Origin at top
left 

Magnitude of Fourier Transform, f_even1A.img . A text
file of the pixel values is in f_evenA.txt . Origin at center 

Log of Magnitude of Fourier Transform, f_even2A.img .
Origin at center 

Phase of Fourier Transform, f_even3A.img . Origin at center 

Original Image, odd.img 

Hartley Transform, h_odd1.img . A text file of the pixel
values is in h_odd.txt . 

Log of Hartley Transform, h_odd2.img 

Magnitude of Fourier Transform, f_odd1.img . A text file
of the pixel values is in f_odd.txt . Origin at top left. 

Log of Magnitude of Fourier Transform, f_odd2.img . Origin
at top left. 

Phase of Fourier Transform, f_odd3.img . Origin at top
left. 

Magnitude of Fourier Transform, f_odd1A.img . A text file
of the pixel values is in f_oddA.txt . Origin at center. 

Log of Magnitude of Fourier Transform, f_odd2A.img . Origin
at center. 

Phase of Fourier Transform, f_odd3A.img . Origin at center. 

Original Image, points.img 

Hartley Transform, h_points1.img . A text file of the
pixel values is in h_even.txt . 

Log of Hartley Transform, h_points2.img 

Magnitude of Fourier Transform, f_points1.img . A text
file of the pixel values is in f_points.txt . Origin at top
left. 

Log of Magnitude of Fourier Transform, f_points2.img .
Origin at top left. 

Phase of Fourier Transform, f_points3.img . Origin at
top left. 

Magnitude of Fourier Transform, f_points1A.img . A text
file of the pixel values is in f_pointsA.txt . Origin at center. 

Log of Magnitude of Fourier Transform, f_points2A.img .
Origin at center. 

Phase of Fourier Transform, f_points3A.img . Origin at
center. 