View source for FQPlus

{{FilterCat4|External_filters|Plugins|Plugins_x64|Multipurpose_Filters}}
{{Filter3
| {{Author/vcmohan}}
| 2017/03/19
|[http://www.avisynth.nl/users/vcmohan/FQPlus/FQPlus.7z FQPlus.7z]
| Multipurpose Filters
|[https://www.gnu.org/licenses/gpl-3.0.txt GPLv3]
|6=[https://forum.doom9.org/showthread.php?t=174161 Doom9 Thread]
}}

== Description ==
This plugin has 7 functions, it operates in frequency domain and requires the '''libfftw3f-3.dll''' from the FFTW library.

Often video images have three types of blur.
*1. Blur due to relative movement of camera during the short time the shutter is open,
*2. Blur due to subjects being out of focus
*3. combination of both.
*4. Regular frequency interference on images. These can be attenuated with either 1D or 2D frequency filters. Frequency spectral displays enable to find such interference and design correcting filters.  

See official documentation: http://www.avisynth.nl/users/vcmohan/FQPlus/FQPlus.html
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== Requirements ==
* [x86] [[AviSynth+]]
* [x64] [[AviSynth+]]
* Supported color formats: [[TODO]]
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===Runtime dependencies===
The following are required, FQPlus will not run or load without them.

* [https://www.microsoft.com/en-us/download/details.aspx?id=53587 Microsoft Visual C++ 2015 Redistributable Package (x86 / x64)]
:<span style="color:red">***</span> <tt>vcredist_x86.exe</tt> is required for <tt>FQPlus-x86</tt>
:<span style="color:red">***</span> <tt>vcredist_x64.exe</tt> is required for <tt>FQPlus-x64</tt>

* [http://www.fftw.org/install/windows.html FFTW 3.3.5] (<code>'''fftw-3.3.5-dll32.zip'''</code> or <code>'''fftw-3.3.5-dll64.zip'''</code>)
:<span style="color:red">***</span> 32-bit <tt>libfftw3f-3.dll</tt> needs to be in the search path (<tt>C:\Windows\SysWOW64</tt> 64-bit OS or <tt>C:\windows\system32</tt> 32-bit OS)
:<span style="color:red">***</span> 64-bit <tt>libfftw3f-3.dll</tt> needs to be in the search path (<tt>C:\windows\system32</tt> 64-bit OS)
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== Filters ==
{{PluginFilterTable2}}
{{PluginFilterRow|FQPlus|F2QSharp|
Introduces Gaussian Blur on image.
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{{PluginFilterRow|FQPlus|F2QSharp|
Produces either a motion blur or out of focus blur on an image.
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{{PluginFilterRow|FQPlus|F1QTest|
Provides visual aid to estimate type and specifications of 1D filters needed.
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{{PluginFilterRow|FQPlus|F1Quiver|
Filters input image with specified 1D filters.
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{{PluginFilterRow|FQPlus|F2QTest|
Provides visual aid to estimate type and specifications of 2D filters needed.
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{{PluginFilterRow|FQPlus|F2Quiver|
Filters input image with specified 2D filters.
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{{PluginFilterRow|FQPlus|F2QCorrelation|
Cross correlates frames.
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|}
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== Changelog ==
 Version      Date            Changes<br>
              2017/03/19      - Add F2QCorrelation function
              2017/01/02      - Initial release

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'''Back to [[External_filters#Spatio-Temporal_Denoisers|External Filters]] &larr;'''