Hallo,
this plugin can be used to adjust the white balance of a picture based on the white and black patch a standard color chart in the scene. It will use their known sRGB values to bring the image closer to sRGB specs, but it is NOT a full color calibration as described on my website at C4Real. Useful in medical photography, forensics, etc. ...
version 1.0
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Supported charts: MacBeth Color Checker Chart A4 and small, QP Card 201.
Instructions:
- Install plugin
- Set primary color to that of the white patch, and secondary to the black patch (can be omitted)
- Adjustments -> Color -> ChartWhiteBalance
- Select other chart if required,turn off use of black if required.
- Close
Any constructive comments are warmly welcomed
Yves
Version 1.1 (12 sept 2010)
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Changes
- Not using codelab anymore, full project in VS gives me more flexibility, especially when debugging. Btw CodeLab is still a great tool to get started!
- Added another type of chart we are using (medicol).
- Added some checks which would lead to division by zero errors
- Added a little info on the tool dialog (users were confused without help).
- Appears in the Effects / Photo menu now.
Version 1.2 (13 sept 2010)
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Changes
- Added a virtual absolute white and black chart: choosing this means image black is mapped to (0,0,0) and white to (255,255,255). This is useful
for general white balancing
- Added automatic detection of image white and black using a 5 x 5 window
Version 1.2.1 (21 sept. 2010): Bugfix
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Changes
- Removed a bug whereby the LUT had erronuous values for R*G*B* index = 1. This was visible as usually brightly coloured single pixels in the image.
Paint.NET.ChartWhiteBalance.zip
ChartWhiteBalance1.2.zip
ChartWhiteBalance1.1.zip
ChartWhiteBalance1.2.1.zip