This is a brand new re-made version of the "FFT" plugin for Photoshop from this thread. Now with a proper action to automate the procedure and get better results than manual painting. Due to the major changes we decided this deserved a new thread.
This is a set of FREE plugins and actions for Adobe Photoshop that will let you easily remove repeating patterns from images.
Moved it to a separate site, just in case forum thread goes down (and so I can keep track of number of downloads). But you can keep the discussion in this thread. If you have any problematic images, don't hesitate to post them!
Download the tools here
View video tutorial
before-after.jpg
image_96668.jpgimage_96669.jpg
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We highly recommend using the actions for processing images to remove the patterns versus using the old way of using the Ft-plugins and painting manually. View/read the tutorial before using!
Files included
Requirements and compatibility
Installation (Windows)
The action set will be shown in your Actions Panel (can be found under Window > Actions).
The Plug-ins will be available under Filter > RONC 2018, but normally you should not need to run them manually.
Installation (Mac)
The Plug-ins will be available under Filter > RONC 2018, but normally you should not need to run them manually.
Copyright
The filters were made by the Fourier transform guru Ron Chambers based on the original source code by Alex Chirikov. Mac plugins (and further optimization of Windows-plugins) was done by Francesco Pierfederici.
The actions were created by me, Jonas M. Rogne - a guy that has used Photoshop too much.
FFT library is from http://www.fftw.org/
Everything is free for personal and commercial use.
Detailed copyright/license information is in the Readme.pdf-file.
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Changelog
v2.6 - Minor update
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I will update this main post with the latest versions when/if we make improvements to the actions/plugins.
Please try it out, and post your feedback below.
Here is a test file for you to download if you want to try it.
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This is a set of FREE plugins and actions for Adobe Photoshop that will let you easily remove repeating patterns from images.
Moved it to a separate site, just in case forum thread goes down (and so I can keep track of number of downloads). But you can keep the discussion in this thread. If you have any problematic images, don't hesitate to post them!

Download the tools here
View video tutorial
before-after.jpg
image_96668.jpgimage_96669.jpg
---
We highly recommend using the actions for processing images to remove the patterns versus using the old way of using the Ft-plugins and painting manually. View/read the tutorial before using!
Files included
- libfftwx64_3-3.dll – FFTW library. Required by the Windows plugins.
- .8bf – Windows plugins for doing Fourier transformations(used by the actions).
- .plugin – Mac plugins for doing Fourier transformations (used by the actions).
- Pattern Suppressor v2.6.atn – Photoshop Actions for doing pattern suppression.
- Readme.pdf – Detailed readme, and written tutorial.
Requirements and compatibility
- Requires Adobe Photoshop (64-bit).
- Tested on CS5-CC2020 and Windows 10 and CC2017-18 on macOS 10.12-13. But should work on more versions.
- Requires basic knowledge of how to use the Brush Tool, layers, masks and the Actions Panel. Tutorial provided.
Installation (Windows)
- Copy libfftwx64_3-3.dll to your Photoshop installation folder. Usually this is
C:\Program Files\Adobe\Adobe Photoshop [version]\ - Copy the .8bf-files to the Photoshop Plug-ins-folder. By default this is
C:\Program Files\Adobe\Adobe Photoshop [version]\Plug-ins\ - Restart Photoshop if it was running.
- Double-click FT Pattern Suppressor v2.6.atn to install the actions.
(You could also choose “Load Actions…” in your Actions Panel Menu).
The action set will be shown in your Actions Panel (can be found under Window > Actions).
The Plug-ins will be available under Filter > RONC 2018, but normally you should not need to run them manually.
Installation (Mac)
- Copy the .plugin-files to the Photoshop Plug-ins-folder. By default this is
- /Applications/Adobe Photoshop [version]/Plug-Ins
- Restart Photoshop if it was running.
- Double-click FT Pattern Suppressor v2.6.atn to install the actions.
(You could also choose “Load Actions…” in your Actions Panel Menu).
The Plug-ins will be available under Filter > RONC 2018, but normally you should not need to run them manually.
Copyright
The filters were made by the Fourier transform guru Ron Chambers based on the original source code by Alex Chirikov. Mac plugins (and further optimization of Windows-plugins) was done by Francesco Pierfederici.
The actions were created by me, Jonas M. Rogne - a guy that has used Photoshop too much.
FFT library is from http://www.fftw.org/
Everything is free for personal and commercial use.
Detailed copyright/license information is in the Readme.pdf-file.
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Changelog
v2.6 - Minor update
- Fixed a spelling mistake and renamed the action-file from "2" to "2.6" to avoid confusion regarding the version number. The actions are otherwise unchanged since version 2.
- Replaced the Windows-plugins with the multi-threaded versions that we've had lying around for a long time but didn't actually publish. Thanks to Francesco Pierfederici. This gives a performance boost on system with multiple cores (for the transformation itself, not the rest of the action). Note that the Mac-versions were already multi-threaded. Common error messages added to the readme-file. No other changes.
- The version on Adobe Exchange will not be updated due to Adobe making the process super inconvenient.
- With the expertise of Francesco Pierfederici, we now officially have Mac support! Place in plugins-folder. No dll needed.
- Published the Pattern Suppressor on the Adobe Exchange. It is limited to CC. If it doesn't work you can always use the manual install from ft.rognemedia.no.
- Now supports color images!
- New naming scheme for plug-in files.
- Reworked the automatic suppression. It is now a lot more accurate.
- Ron has re-written the plugins/filters, and the previous "white red channel" bug that happened with certain image sizes has been eliminated.
- Filters now work with 8, 16, and 32-bit files. 8-bit is not recommended though as the limited bit depth is insufficient for accurate results.
- Chain has created a new action set automating most of the process.
- The action set automatically suppresses bright spots in the red channel. A layer mask is used as you must then remove the suppression from the central star manually (that part cannot be fully automated).
- The actions perform Nyquist filtering as part of the process to avoid "moiré"-like artifacts and "hot" pixels.
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I will update this main post with the latest versions when/if we make improvements to the actions/plugins.
Please try it out, and post your feedback below.
Here is a test file for you to download if you want to try it.
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