A translation by a non-trivial (dx, dy) can still result in identity, provided {dx mod (2 Nx - 2)} = 0 and {dy mod (2 Ny - 2)} = 0.
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Give the input image file name (enter ? to cancel):
--> lena.img
Give the input image width:
--> 256
Give the input image height:
--> 256
Give the image origin of the x-axis:
--> 0
Give the image origin of the y-axis:
--> 0
Give the counter-clockwise image rotation angle in degrees:
--> 0
Give the image horizontal translation in pixels:
--> 1020
Give the image vertical translation in pixels:
--> -1530
Give the degree of the B-spline model [2, 3, 4, 5, 6, 7, 8, 9]:
--> 3
Do you want to mask out the irrelevant part of the image (0: no; 1: yes)?
--> 0
Give the output image file name (enter ? to cancel):
--> result06.img
Done
Left: 256x256 Lena input image. Right: the output image is identical to the input, even though a large translation took place |  |
Comments and feedback to: philippe.thevenaz@epfl.ch
