File: TestButterworthLowPass.tcl

package info (click to toggle)
vtk 5.0.2-4
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 51,080 kB
  • ctags: 67,442
  • sloc: cpp: 522,627; ansic: 221,292; tcl: 43,377; python: 14,072; perl: 3,102; java: 1,436; yacc: 1,033; sh: 469; lex: 248; makefile: 181; asm: 154
file content (33 lines) | stat: -rw-r--r-- 648 bytes parent folder | download | duplicates (20) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
package require vtk

# This script shows the result of an ideal lowpass filter in frequency space.


# Image pipeline

vtkPNGReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/fullhead15.png"

vtkImageFFT fft
fft SetDimensionality 2
fft SetInputConnection [reader GetOutputPort]
#fft DebugOn

vtkImageButterworthLowPass lowPass
lowPass SetInputConnection [fft GetOutputPort]
lowPass SetOrder 2
lowPass SetXCutOff 0.2
lowPass SetYCutOff 0.1
lowPass ReleaseDataFlagOff
#lowPass DebugOn

vtkImageViewer viewer
viewer SetInputConnection [lowPass GetOutputPort]
viewer SetColorWindow 10000
viewer SetColorLevel 5000
#viewer DebugOn


viewer Render