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8/13/2019 Phase Maps With 3D Plots After Gaussian Filtering
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I have used the Gaussian filter with increasing values of sigma(standard deviation) on the first fringe
pattern as given in the following figures :-
Fig.1 – Original image Fig.2 – Gaussian filtering ( ) Fig.3 - Gaussian filtering ( )
Fig.4 – Gaussian filtering ( ) Fig.5 – Gaussian filtering ( ) Fig.6 – Gaussian filtering ( )
Fig.7 – Gaussian filtering ( ) Fig.8 – Gaussian filtering ( ) Fig.9 – Gaussian filtering ( )
I had tried median filtering over the Gaussian filtered images but that led to clarifying the images
again and for some values of sigma the fringe pattern completely lost its individuality.
Fig.10 - image obtained after applying median filtering.
8/13/2019 Phase Maps With 3D Plots After Gaussian Filtering
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Whereas the phase maps were found out to be poorer in image quality as compared to the ones
obtained without applying filtering, (I have used the images for sigma=1).
Fig.11 – Phase map of pattern 1
Fig.12 – 3D plot of the phase map
8/13/2019 Phase Maps With 3D Plots After Gaussian Filtering
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Fig.13 – Colour 3D plot of the phase map.
FRINGE PATTERN – 2
Fig.14 – Original image Fig.15 - Gaussian filtering ( )
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Fig.16 –
Phase map.
Fig.17 - 3D plot of the phase map
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Fig.18 – Colour 3D plot of the phase map.
FRINGE PATTERN - 3
Fig.19 – Original image Fig.20 - Gaussian filtering ( )
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Fig.21 – Phase map.
Fig.22 - 3D plot of the phase map
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Fig.23 – Colour 3D plot of the phase map.
FRINGE PATTERN - 4
Fig.24 – Original image Fig.25 - Gaussian filtering ( )
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Fig.26 – Phase map.
Fig.27 - 3D plot of the phase map
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Fig.28 –
Colour 3D plot of the phase map.
FRINGE PATTERN - 7
Fig.29 – Original image Fig.30 - Gaussian filtering ( )
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Fig.31 – Phase map.
Fig.32 - 3D plot of the phase map
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Fig.33 – Colour 3D plot of the phase map.
FRINGE PATTERN - 8
Fig.34 – Original image Fig.35 - Gaussian filtering ( )
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Fig.36 – Phase map.
Fig.37 - 3D plot of the phase map
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Fig.38 – Colour 3D plot of the phase map.
FRINGE PATTERN - 9
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Fig.39 – Original image Fig.40 - Gaussian filtering ( )
Fig.41 – Phase map.
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Fig.42 - 3D plot of the phase map
Fig.43 –
Colour 3D plot of the phase map.
A COMPARISON OF THE PHASE – MAPS WITH
AND WITHOUT FILTER
Fringe Pattern – 1
Fig.44 – Phase map without filter Fig.45 – Phase map with filter
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Fringe Pattern – 2
Fig.46 – Phase map without filter Fig.47 – Phase map with filter
Fringe Pattern – 3
Fig.48 – Phase map without filter Fig.49 – Phase map with filter
Fringe Pattern – 4
Fig.50 – Phase map without filter Fig.51 – Phase map with filter
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Fringe Pattern – 7
Fig.52 – Phase map without filter Fig.53 – Phase map with filter
Fringe Pattern – 8
Fig.54 – Phase map without filter Fig.55 – Phase map with filter
Fringe Pattern – 9
Fig.56 – Phase map without filter Fig.57 – Phase map with filter
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