mrcImageLowPassFilter

mrcImageLowPassFilter is Eos's Command that performs Low-Pass Filter to mrcImage, and smoothing it.

List of option

Main option

Option	Essential/Optional	Description	Default
-i	Essential	Input: mrcImage	NULL
-o	Essential	Output: mrcImage	NULL
-hvp	Optional	HalfValuePoint[A-1] (the spatial frequency that the intensity attenuate to half)	1.0
-w	Optional	Width of cos function of spatial frequency	1.0
-c	Optional	ConfigurationFile	NULL
-m	Optional	Mode (need to set ,because 0 is undefined)	0
-h	Optional	Help

-m details

Value	Description
1	Step filter : required argumnent: -hvp
2	Cos filter  : required argumnent: -hvp -w
3	Exp filter  : required argumnent: -hvp
4	Gauss filter  : required argumnent: -hvp
5	Lorenz filter  : required argumnent: -hvp

Execution example

Input file's image

Real Space

Fourier Space

Min Max Mean SD SE

0 255 21.0538 47.6709 0.595886

Option -m

Case: m=1

Case: hvp=0.03

Real Space

Fourier Space

Min Max Mean SD SE

-13.3126 219.107 21.0538 46.5599 0.581999

The image on Real Space is seen blurry, because its high frequency signal is filtered.

Case: m=2

Case: hvp=0.03, w=0.03

Real Space

Fourier Space

Min Max Mean SD SE

-7.37665 213.947 21.0538 46.0616 0.57577

Case: m=3

Case: hvp=0.03

Real Space

Fourier Space

Min Max Mean SD SE

1.13914 183.815 21.0538 39.0991 0.488739

Case: hvp=0.01

Real Space

Fourier Space

Min Max Mean SD SE

3.38997 125.944 21.0538 28.4391 0.355488

Case: m=4

Case: hvp=0.03

Real Space

Fourier Space

Min Max Mean SD SE

-1.83105e-05 199.777 21.0538 43.8691 0.548364

Case: m=5

Case: hvp=0.03

Real Space

Fourier Space

Min Max Mean SD SE

1.15871e-05 199.081 21.0538 43.1827 0.539784

Example of help by -h

$ mrcImageLowPassFilter -h
Usage: /home/people/tacyas/Eos/bin/X86LINUX64/mrcImageLowPassFilter
Options:
    [-i[nput]            In                  (NULL      )] :Essential :InputDataFile
    [-o[utput]           Out                 (NULL      )] :Essential :OutputDataFile
    [-c[onfig]           configFile          (NULL      )] :Optional  :ConfigurationFile
    [-m[ode]             mode                (0         )] :Optional  :Mode
    [-h[alf]v[alue]p[oint]hvp                 (1.0       )] :Optional  :HalfValuePoint[/A]
    [-w[idth]            width               (1.0       )] :Optional  :WidthOfDumping
>>> Mode <<<< 
    1: Step filter : required argumnent: -hvp
    2: Cos filter  : required argumnent: -hvp -w
    3: Exp filter  : required argumnent: -hvp
    4: Gauss filter  : required argumnent: -hvp 
    5: Lorenz filter  : required argumnent: -hvp