I'm still learning how to create complex effect filters for Paint.NET. This is the first one that I wrote that combines preexisting effects. After I wrote this one, I did the Ink Sketch effect.
The Idea
The idea for this plugin came from belman92's post here.
I thought that it would be easy to automate the steps that are sometimes used to make portraits look softer and more professional. You can use this on other pictures, but it really is meant for portraits. It adds a little brown to smooth out skin but not too much detail is lost. Here is an example pic of my lovely wife:
<snip demonstration photo>
The Effect DLL
NOTE: This effect is now included in Paint.NET. If you have upgraded to Paint.NET 3.10 or greater, you do not need to download this effect... you already have it!
Instructions for Use
The best way to use this is to follow these steps:
1. Open your graphic.
2. Click the Effects > Portrait menu.
3. Adjust the sliders for the desired effect.
More Info
As always, more information can be found here: http://boltbait.goog...es.com/portrait
Source Code
To understand this code, first read the Ink Sketch thread. Go ahead, I'll wait.
Back? OK, here ya go:
/* PortraitEffect.cs
Copyright © 2007 David Issel
Contact Info: BoltBait@hotmail.com http://www.BoltBait.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
using System;
using System.Collections;
using System.Drawing;
using PaintDotNet;
using PaintDotNet.Effects;
namespace PortraitEffect
{
public class EffectPlugin
: PaintDotNet.Effects.Effect
{
public static string StaticName
{
get
{
return "Portrait";
}
}
public static Bitmap StaticIcon
{
get
{
return new Bitmap(typeof(EffectPlugin), "EffectPluginIcon.png");
}
}
private BlurEffect blurEffect = new BlurEffect();
private UnaryPixelOps.Desaturate desaturateOp = new UnaryPixelOps.Desaturate();
private SepiaEffect sepiaEffect = new SepiaEffect();
private BrightnessAndContrastAdjustment bacAdjustment = new BrightnessAndContrastAdjustment();
private UserBlendOps.OverlayBlendOp OverlayOp = new UserBlendOps.OverlayBlendOp();
private UnaryPixelOp levels;
public override unsafe void Render(EffectConfigToken parameters, RenderArgs dstArgs, RenderArgs srcArgs, Rectangle[] rois, int startIndex, int length)
{
ThreeAmountsConfigToken tacd = (ThreeAmountsConfigToken)parameters;
float RedAdjust = 1.0f + ((float)tacd.Amount3 / 100.0f);
float BlueAdjust = 1.0f - ((float)tacd.Amount3 / 100.0f);
AmountEffectConfigToken blurToken = new AmountEffectConfigToken(tacd.Amount1 * 3);
BrightnessAndContrastAdjustmentConfigToken bacToken = new BrightnessAndContrastAdjustmentConfigToken(tacd.Amount2, -tacd.Amount2/2);
this.blurEffect.Render(blurToken, dstArgs, srcArgs, rois, startIndex, length);
this.bacAdjustment.Render(bacToken, dstArgs, dstArgs, rois, startIndex, length);
for (int i = startIndex; i < startIndex + length; ++i)
{
Rectangle roi = rois[i];
for (int y = roi.Top; y < roi.Bottom; ++y)
{
ColorBgra* srcPtr = srcArgs.Surface.GetPointAddress(roi.Left, y);
ColorBgra* dstPtr = dstArgs.Surface.GetPointAddress(roi.Left, y);
for (int x = roi.Left; x < roi.Right; ++x)
{
ColorBgra srcGrey = this.desaturateOp.Apply(*srcPtr);
srcGrey.R = Utility.ClampToByte((int)((float)srcGrey.R * RedAdjust));
srcGrey.B = Utility.ClampToByte((int)((float)srcGrey.B * BlueAdjust));
ColorBgra mypixel = this.OverlayOp.Apply(srcGrey, *dstPtr);
*dstPtr = mypixel;
++srcPtr;
++dstPtr;
}
}
}
}
public override EffectConfigDialog CreateConfigDialog()
{
ThreeAmountsConfigDialog tacd = new ThreeAmountsConfigDialog();
tacd.Text = StaticName;
tacd.Amount1Label = "Soften";
tacd.Amount1Minimum = 0;
tacd.Amount1Maximum = 10;
tacd.Amount1Default = 5;
tacd.Amount2Label = "Lighting";
tacd.Amount2Minimum = -20;
tacd.Amount2Maximum = 20;
tacd.Amount2Default = 0;
tacd.Amount3Label = "Warmth";
tacd.Amount3Minimum = 0;
tacd.Amount3Maximum = 20;
tacd.Amount3Default = 10;
return tacd;
}
public EffectPlugin()
: base(StaticName, StaticIcon, true)
{
}
}
}Note: This is NOT a codelab script!
