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Stray pixel remover


archip

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This plugin deletes small islands of pixels.
 

When I use the magic wand, some pixels aren't deleted. The plugin deletes them, if they are surrounded by transparent pixels. : sMSe2t0.png

 

It has two parameters :

- radius threshold : Delete island up to this size.

- alpha threshold : A pixel will be considered transparent up to this value. 

 

@toe_head2001 has recompiled this plugin to make it compatible with PDN 4.0+.

 

StrayPixelRemover.zip
 

 

 

Spoiler

 

Original PDN 3.5.11 version: StrayPixelRemover.zip   <--- Incompatible with Paint.NET 4.x

 

 

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I would like to try this out, but for some reason my browser (both IE10 & Chrome) and my Avast internet security won't permit me to download the file ?

 

ZXCBOoZ.png

 

 

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PS: I can't upload DLL files so you have to rename the "StrayPixelRemover.txt" to "StrayPixelRemover.dll".

Zip them. A lot more people understand ZIP files than changing extensions, especially since Windows hides extensions by default.
  • Upvote 1

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This is looking interesting. Do you need to make a - selection - surrounding the stray pixel(s) or will this auto remove them for you?

iNUIdNo.jpg

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It will auto remove if it finds a pixel to be surrounded by transparent pixels.  Making a selection will constrain the effect within the selection bounds.

 

@archip:  I'm going to take issue with the menu placement.  Misc?  To me, that's less than helpful.  Why not place it in the Object menu?  (as this operates on tiny pixel objects).

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It will auto remove if it finds a pixel to be surrounded by transparent pixels.  Making a selection will constrain the effect within the selection bounds.

Thank you EER. 

iNUIdNo.jpg

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For now, the effect is applied to the entire image, I'll change this when I find how. I'll also change the menu placement.

 

If you have suggestion post them and I'll see what I can do.

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  • 2 months later...
  • 3 years later...
On 11/30/2016 at 6:30 AM, Allan said:

I have tried installing this on Windows 10 and Windows 7 and in both in crashes paint.

 

I've updated the effect using the original source code provided by @archip in the first post.

 

Fixes:

- No longer crashes

- Faster and more efficient

- Works properly on non-rectangular selections

 

  • Upvote 5

(September 25th, 2023)  Sorry about any broken images in my posts. I am aware of the issue.

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I came back to this thread to confirm the crash and probable incompatibility with PDN 4.

Thank you toe_head. You fixed it in the time it took me to test it!

Xkds4Lh.png

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Thanks for the update toe_head. I've added your zip file to the first post.

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  • 3 months later...
16 minutes ago, AndrewDavid said:

First try and it crashed my paint. Crashlog sent to the usual email.

You used the updated release I made, or the original one for paint.net v3?

 

Post the crashlog here in this forum thread.

(September 25th, 2023)  Sorry about any broken images in my posts. I am aware of the issue.

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As you wish - the new one you just updated.

 

Application version: paint.net 4.0.15 (Final 4.15.6309.42632)

Time of crash: 2017-04-13 2:41:49 PM

Application uptime: 00:01:23.0193871

Application state: Running

Working set: 206,276 KiB

Handles and threads: 1796 handles, 34 threads, 218 gdi, 248 user

Install directory: C:\Program Files\paint.net

Current directory: C:\Program Files\paint.net

OS Version: 10.0.14393.0 Workstation x64

.NET version: CLR 4.0.30319.42000 x64, FX 4.6

Processor: "Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz" @ ~3193MHz (4C/4T, DEP, SSE, SSE2, SSE3, SSSE3, SSE4_1, SSE4_2, XSAVE)

Physical memory: 8143 MB

Video card: NVIDIA GeForce GT 720 (v:10DE, d:1286, r:161), Microsoft Basic Render Driver (v:1414, d:8C, r:0)

Hardware acceleration: True (default: True)

UI animations: True

UI DPI: 96.00 dpi (1.00x scale)

UI theme: Aero/Aero + DWM (Aero.msstyles)

Updates: True, 2017-04-13

Locale: pdnr.c: en-US, hklm: en-US, hkcu: en-US, cc: en-CA, cuic: en-US

Flags:

 

 

Exception details:

System.InvalidOperationException: Collection was modified; enumeration operation may not execute.

   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)

   at System.Collections.Generic.List`1.Enumerator.MoveNextRare()

   at ExamplePropertyBased.StrayPixelsEffect.OnRender(Rectangle[] rois, Int32 startIndex, Int32 length)

   at PaintDotNet.Effects.Effect`1.Render(EffectConfigToken parameters, RenderArgs dstArgs, RenderArgs srcArgs, Rectangle[] rois, Int32 startIndex, Int32 length) in D:\src\pdn\src\Effects\Effect`1.cs:line 98

   at PaintDotNet.Effects.BackgroundEffectRenderer.RenderWithClipMask(Effect effect, EffectConfigToken token, RenderArgs dstArgs, RenderArgs srcArgs, Rectangle[] rois, IRenderer`1 clipMaskRenderer) in D:\src\pdn\src\PaintDotNet\Effects\BackgroundEffectRenderer.cs:line 170

   at PaintDotNet.Effects.BackgroundEffectRenderer.RendererContext.RenderTile(EffectConfigToken token, Int32 tileIndex) in D:\src\pdn\src\PaintDotNet\Effects\BackgroundEffectRenderer.cs:line 150

   at PaintDotNet.Effects.BackgroundEffectRenderer.RendererContext.RenderNextTile(EffectConfigToken token) in D:\src\pdn\src\PaintDotNet\Effects\BackgroundEffectRenderer.cs:line 142

   at PaintDotNet.Effects.EffectRendererWorkItemQueue.OnExecuteNextWorkItem() in D:\src\pdn\src\PaintDotNet\Effects\EffectRendererWorkItemQueue.cs:line 131

   at PaintDotNet.Threading.MultithreadedWorkItemDispatcher.WorkThreadProc(Object context) in D:\src\pdn\src\Core\Threading\MultithreadedWorkItemDispatcher.cs:line 512

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Threading.ThreadHelper.ThreadStart(Object obj)

 

 

Managed assemblies:

    mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 @ C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorlib.dll

    PaintDotNet, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.exe

    PaintDotNet.Base, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.Base.dll

    WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\WindowsBase.dll

    System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll

    System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll

    System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll

    PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\PresentationFramework\v4.0_4.0.0.0__31bf3856ad364e35\PresentationFramework.dll

    PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_64\PresentationCore\v4.0_4.0.0.0__31bf3856ad364e35\PresentationCore.dll

    System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 @ C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll

    PaintDotNet.Core, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.Core.dll

    PaintDotNet.SystemLayer, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.SystemLayer.dll

    PaintDotNet.Framework, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.Framework.dll

    PaintDotNet.Resources, Version=4.15.6309.42632, Culture=neutral, PublicKeyToken=null @ C:\Program Files\paint.net\PaintDotNet.Resources.dll

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That's an exception you'll see if your `List<T>` is modified (e.g. via `Add()` or `Remove()` etc.) at the same time as enumeration (like with a `foreach`).

 

So, basically, the use of this `List<T>` is being done without synchronization (locks).

 

This can be fixed in many ways. One hacky approach is to use `EffectFlags.SingleThreaded`.

 

Edit: darn, I forgot that this forum doesn't support Markup. Pretend all of my `things in ticks` are using a "code" font :) 

The Paint.NET Blog: https://blog.getpaint.net/

Donations are always appreciated! https://www.getpaint.net/donate.html

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Nice. Thank you Toe-Head. I've updated the first post.

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  • 1 year later...
  • 9 months later...

Man, I have been looking for this plugin for AGES, thank you so much guys.

It's great for removing leftover dots after using ArgusMagnus' Unblend.

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