Temperature / Tint Adjustment

[BoltBait]

Due to a request here: http://forums.getpaint.net/index.php?/topic/111023-need-color-temperature-control-equivalent-to-windows-live-photo-gallery/

 

 

I created a Temperature / Tint Adjustment plugin.  It is found under the Adjustment menu.

 

User Interface:

 

 

Algorithm:

 

This is where I found the algorithm that I used:

 

http://www.tannerhelland.com/5675/simple-algorithms-adjusting-image-temperature-tint/

Here you can visualize the sliders overlaid on the standard color wheel:

 

 

CodeLab Script:

// Name: Temperature/Tint
// Submenu: Adjustment
// Author: BoltBait
// Title: BoltBait's Temperature/Tint v1.3
// Version: 1.3
// Desc: Adjust the Temperature or Tint of a photograph
// Keywords: Temperature|Tint
// URL: http://BoltBait.com/pdn
#region UICode
IntSliderControl Amount1 = 0; // [-20,20] Temperature
IntSliderControl Amount2 = 0; // [-20,20] Tint
CheckboxControl Amount3 = false; // [0,1] Preview original image
#endregion

private byte Clamp2Byte(int iValue)
{
    if (iValue < 0) return 0;
    if (iValue > 255) return 255;
    return (byte)iValue;
}

unsafe void Render(Surface dst, Surface src, Rectangle rect)
{
    for (int y = rect.Top; y < rect.Bottom; y++)
    {
        if (IsCancelRequested) return;
        ColorBgra* srcPtr = src.GetPointAddressUnchecked(rect.Left, y);
        ColorBgra* dstPtr = dst.GetPointAddressUnchecked(rect.Left, y);
        for (int x = rect.Left; x < rect.Right; x++)
        {
            ColorBgra CurrentPixel = *srcPtr;

            if (!Amount3)
            {
                CurrentPixel.R = Clamp2Byte(CurrentPixel.R + Amount1); // Temperature
                CurrentPixel.B = Clamp2Byte(CurrentPixel.B - Amount1); // Temperature
                CurrentPixel.G = Clamp2Byte(CurrentPixel.G + Amount2); // Tint
            }

            *dstPtr = CurrentPixel;
            srcPtr++;
            dstPtr++;
        }
    }
}

 

Download:

 

Download as part of my plugin pack, here: https://forums.getpaint.net/BoltBaitPluginPack

 

 

 

Support:

 

This plugin is for paint.net 4.0.6+

 

If you are running Paint.NET 3.5.11, you can build your own copy using the CodeLab source above.  You'll need to update the UICode region by replacing "IntSliderControl" with "int" and "CheckboxControl" with "bool".  Or, if CodeLab scares you, download the 3.5.11 version here: http://forums.getpaint.net/index.php?/topic/111031-temperature-tint-adjustment/&do=findComment&comment=527785

 

[Seerose]

 Sir BB! 

 

Thanks for posting this awesome tut.  

[Pixey]

This is a great Plugin @BoltBait and thank you .  Perfect for getting a very subtle change in color on photos and will have many other uses as well.

 

Before

 

 

After

 

 

[Maximilian]

Thanks for the code, BoltBait!

Is it okay if I post a zip with a 3.5.11 compilation for those who may not have (or may be afraid of) CodeLab?

[BoltBait]

Sure, go ahead and post it.

[Maximilian]

Here it is: BoltBait's TemperatureTint for PdN 3.5.11.zip

Edited February 17, 2017 by Maximilian
Added icon and batch file for installing

[dipstick]

17 hours ago, BoltBait said:

If you are running Paint.NET 3.5.11, you can build your own copy using the CodeLab source above.  You'll need to update the UICode region by replacing "IntSliderControl" with "int" and "CheckboxControl" with "bool".

 

 

Thanks for the info BoltBait. I downloaded CodeLab v1.8 and made my own v3.5.11 compatible dll with my own icon. I did it in Linux under wine. It was touch and go for a while, but I managed to make a working version.

[Lloyd]

A useful addition to my adjustment plugins, thanks for the work. 

[mawhaley1]

Ok, I may be an idiot, lol, but I don't see where to get the plugin or how to install it. I'm using the app on my work computer. I only have the full program on my laptop at home. Thanks for any help.

[Pixey]

Hi @mawhaley1 and welcome to the forum.

 

You get the Plugin via @BoltBait's Plugin Pack, found here.

 

And here is a link to How to Install Plugins.