makeimg.myphantom¶
-
makeimg.
myphantom
(N, ns=0.0)[source]¶ Create the famous Shepp–Logan phantom
Parameters: N : int
Image dimension (image is an N-by-N array)
ns : float
Noise level applied to the image, i.e., 0.1 = 10% noise, 0.2 = 20% noise, etc. Thus ns has to satisfy 0 <= ns <= 1. By default ns = 0.0.
Returns: It : NumPy 2darray
Array representation of the image (2D array)
See also
onesquare
- another piece-wise constant test image
fivesquares
- another piece-wise constant test image
References
[R6] Jain, Anil K., Fundamentals of Digital Image Processing, Englewood Cliffs, NJ, Prentice Hall, 1989, p. 439