LSM 510
OPERATION IN EXPERT MODE
LSM 510 META
Display and Analysis of Images
Carl Zeiss
03/06
B 45-0021 e
4-303
•
To investigate the effects of various filter modes, select one of the 3D display modes (
Profiles
,
Grid
,
Filled
or
Shaded
) from the
Display
button bar.
•
Click on the
Median
sub button to set the smoothing of the integrated Median filter.
Or
•
Click on a
Gauss
or
Average
sub button and select the required degree of smoothing from the
selection box with a click of the mouse.
FFT
button:
This function performs a Fast Fourier Transformation (FFT) in the frequency
range, applies highpass or lowpass filtering in the frequency range and
performs the inverse FFT.
•
Click on the
FFT
button, the
FFT Filter
window opens.
•
Click on the arrow in the filter
Type
select box to choose an adequate filter function:
−
Gauss Lowpass
−
Gauss Highpass
−
Butterworth Lowpass
−
Butterworth Highpass
•
Select a position of the
Cut off
slider to display either the lower frequencies (waviness) with the
lowpass filters or the higher frequencies (roughness) with the highpass filters.
•
The
Cut off
frequencies ranges from 1/1000 of the X dimension of the stack to four times of the X
dimension of the stack. The dimensions of the filtering is given in units of
μ
m.
•
Select a position of the
Degree
slider. The filter functions can be calculated from 1
st
order to 5
th
order
accuracy.
•
Click on the
Close
button closes the
FFT Filter
window.
