createfbpfilter¶
Syntax: createfbpfilter(image, size, filter type, cut-off)
Creates image containing values of filter function used in filtered backprojection. Can be used to visualize different filter functions.
This command cannot be used in the distributed processing mode. If you need it, please contact the authors.
Arguments¶
size [input]¶
Data type: positive integer
Default value: 100
Size of the filter. This corresponds to the padded image size in FBP.
filter type [input]¶
Data type: string
Default value: Ramp
Type of the filter. Supported values are Ideal ramp, Ramp, Shepp-Logan, Cosine, Hamming, Hann, Blackman, Parze.
cut-off [input]¶
Data type: real
Default value: 1
Filter cut-off frequency, 0 corresponds to DC and 1 corresponds to Nyquist.
See also¶
fbppreprocess, fbp, deadpixelremoval, createfbpfilter, defaultrecsettings