RADON2 Name
RADON2 Purpose
Compute the Radon Transform using the FFT method.
Category
Calling Sequence
t = radon2(img) Inputs
img = input image. Must be square. in
Keyword Parameters
Keywords
EMBED=n size of zero image to embed given image in.
Def=no embed.
START=a1 start angle in degrees, default=0.
STOP=a2 stop angle in degrees, default=179.
STEP=da angle step in degrees, default=1.
ANGLES=ang returned list of angles used.
/DEBUG does a debug stop.
Outputs
t = Radon Transform of img. out
Common Blocks
radon2_com Notes
Notes: Images must be byte.
No preprocessing is done.
It may be useful to subtract the mean.
Ref: Linear feature detection and enhancement in noisy
images via the Radon transform,
Lesley M. Murphy, Patt. Rec. Letters 4 (1986) 279.
Modification History
R. Sterner, 16 Oct, 1990
R. Sterner, 1998 Mar 10 --- Cleaned up a bit, no longer byte only.
R. Sterner, 2003 May 22 --- Renamed to radon2.pro.
Copyright (C) 1990, Johns Hopkins University/Applied Physics Laboratory
This software may be used, copied, or redistributed as long as it is not
sold and this copyright notice is reproduced on each copy made. This
routine is provided as is without any express or implied warranties
whatsoever. Other limitations apply as described in the file disclaimer.txt.