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This is very simple effect which allows to eliminate dark or light areas of the image. Good deletes black or white color (as a special case of dark or light, respectively).


The effect has a very simple interface. You can find it under Effects-> Color-> Eliminate Dark/Light.






Original image:



Eliminate dark areas:



Eliminate light areas:



Below the sourse code for CodeLab.



// Author: ReMake
// Submenu: Color
// Name: Eliminate Dark/Light
// Title: Eliminate Dark/Light v1.0    ReMake 2015
// Desc: The Paint.Net effect eliminating dark or light areas of the image
// Keywords: paint.net|effect|eliminate|dark|light
// URL: http://www.getpaint.net/redirect/plugins.html
#region UICode
byte Amount1 = 0; // [1] Eliminate|Dark|Light

void Render(Surface dst, Surface src, Rectangle rect)
    ColorBgra CurrentPixel;
    for (int y = rect.Top; y < rect.Bottom; y++)
        if (IsCancelRequested) return;
        for (int x = rect.Left; x < rect.Right; x++)
            CurrentPixel = src[x,y];
            int R = CurrentPixel.R;
            int G = CurrentPixel.G;
            int B = CurrentPixel.B;
            int A = CurrentPixel.A;
            if (A != 0)
                  switch (Amount1)
                    case 0: // Dark
                        A = Math.Max(Math.Max(R, G), В);
                    case 1: // Light
                        A = 255 - Math.Min(Math.Min(R, G), В);
            CurrentPixel.A = Int32Util.ClampToByte(A);            
            dst[x,y] = CurrentPixel;



This is аn icon for the effect:  icon.png


P.S. I decided to start a new topic, because the former name of the topic Eliminate Black/Eliminate White was wrong.

Edited by ReMake
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Thanks Mr ReMake!


Thank you so much @Remake.  I loved your last one, so I know I will love this one too :D


Thank you Remake, a useful plugin :)


Congrats on the new release, Remake! hi.gif


Thanks to all. I hope this effect will be useful to many users.

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