Color balance
Videos
In photography and image processing, color balance is the global adjustment of the intensities of the colors. An important goal of this adjustment is to render specific colors – particularly neutral c
The left half shows the photo as it came from the digital camera. The right half shows the photo adjusted to make a gray surface neutral in the same light.
Example of color balancing
A seascape photograph at Clifton Beach, South Arm, Tasmania, Australia. The white balance has been adjusted towards the warm side for creative effect.
Photograph of a ColorChecker as a reference shot for color balance adjustments
Gamma correction
Videos
Gamma correction or gamma is a nonlinear operation used to encode and decode luminance in video or images.
Color balance
…pixel in the un-color-balanced image. If the tristimulus values of the monitor primaries are in a matrix P so that: where L R , L G , and L B are the un-gamma corrected monitor RGB, one may use: Johannes von Kries, whose theory of rods and three color-sensitive cone types in the retina has survived as the dominant…
The effect of gamma correction on an image: the original image was taken to varying powers, showing that powers larger than 1 make the shadows darker, while powers smaller than 1 make dark regions lighter. This is not the actual gamma the picture has, though.