11403

Interactive White Balance Adjustment for Photographic Images

Due to different lighting conditions, white or gray areas in a photograph may not be displayed as neutral white or gray. White balance correction rescales the pixel values in the image in order to make gray areas display correctly.
This Demonstration lets you adjust the white balance of the entire photograph by analyzing a presumed gray pixel in the image and adjusting the remaining pixels proportionally. A pixel with red, green, and blue intensities is assumed to be neutral gray when .
Putting the locator in the original image on top of a pixel converts it in the right image to neutral gray and recalculates the remaining pixels, making the complete image "white balanced."
  • Contributed by: Erik Mahieu
  • With coding help from: Giulio Alessandrini

SNAPSHOTS

  • [Snapshot]
  • [Snapshot]
  • [Snapshot]

DETAILS

Reference
[1] Wikipedia. "Color Balance." (Jun 30, 2015) en.wikipedia.org/wiki/Color_balance.
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.









 
RELATED RESOURCES
Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2017 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+