1 ## SimuPBI_circle_func: function that launches the phase-contrast simulation of a single wire, of a material defined by the user.
2 # In this file, I detailed all the input and output arguments, followed by one or several examples (one line beginning with a %)
3 ## Author: Loriane Weber <loriane.weber@creatis.insa-lyon.fr>
7 ## SimuPBI_unknown_1D('star', 2, [0 0.1 0.5], 26, 2.7, 300, 180, 1, 1, '/users/lweber/Matlab/SimulationsPBI/mu_star.edf', '/users/lweber/Matlab/SimulationsPBI/delta_star.edf', '', 'gaussian', 35)
9 ## Please note that dir_out, noise_type, noise_amount are optional arguments.
11 ################################################
12 ############### INPUT parameters ###############
13 ################################################
15 ######### Parameter related to the computation - and names of the result #########
17 ## vers does not exist anymore; the projections are calculated using the Radon transform
19 ## oversamp: is a number that defines the oversampling of the projections in the real domain.
20 ## use the number 2 or 4 only
24 ## basename_output: is a string that contains the basename of the resulting files.
25 ## use a string, of your choice.
26 %basename_output = 'Test'
28 ######### Parameter related to the physics #########
30 ## dist is a vector, which contains the propagation distances, expressed in meters.
31 ## use a vector, beggining and ending with a square bracket; the distances should be separated by a space. Use a point as decimal mark.
32 % dist = [0 0.01 0.1 0.20 0.50]
34 ## energy refers to the energy of the incoming X-ray beam, expressed in keV.
35 ## use a float (if decimal, the decimal mark should be a point).
36 # in the following example, the energy is set to 19 keV and 17.5 keV.
40 ## ps refers to the physical pixel size of the detector, expressed in microns.
41 ## use a float (if decimal, the decimal mark should be a point).
42 # in the following example, the pixel size is set to 1 um and 3.5 um.
46 ## nbproj refers to the number of (equally-angled) projections simulated.
50 ## range_angle refers to the angular range of the tomography (either 180 or 360 degrees).
55 ## model_ctf refers to the Contrast Transfer Function propagation model. use 1 if you want to simulate propagation with the CTF model, or 0 otherwise.
56 ## should be equal to 0 or 1
60 ## model_Fresnel refers to the Fresnel propagation model. Use 1 if you want to simulate propagation with the fresnel model, or 0 otherwise.
61 ## should be equal to 0 or 1
66 ############# Parameters related to the circle #############
68 ## attenuation map (in cm^-1)
69 %attenuation_file='mu_star.edf'
71 ## Refractive index decrement map (delta)
72 %phase_file='delta_star.edf'
74 ################################
75 ############# OPTIONAL Parameters
76 ################################
78 ## dir_out is a string referring to the output directory
79 ## By default, the output directory is the working directory. default value is ''.
80 % dir_out='/mntdirect/_users/lweber/Matlab/SimulationsPBI/Results_Circle'
84 ## Noise addition to the simulated data?
85 ## Use noise='gaussian' (addition of gaussian noise) or noise='poisson' ( generation of Poisson noise) or '' (no noise is added).
87 %noise_type='gaussian'
88 % default value is '' (no noise)
91 ## If 'gaussian' (additive noise), please specify the Peak-to-peak Signe-to-noise ratio (PPSNR, in dB)
93 %default value is 35 dB
94 ## if 'poisson', please specify the amount of noise
96 % default value is 5%.
98 %noise=0; % O (no noise) or 1 (noise)
99 %PPSNR=24; % noise, in dB
101 #######################################################
102 ############### End of INPUT parameters ###############
103 #######################################################
105 #################################################
106 ############### OUTPUT parameters ###############
107 #################################################
109 ## None, files are directly save in the output directory (variable out_dir)
111 ########################################################
112 ############### End of OUTPUT parameters ###############
113 ########################################################