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Input Range	Mapping Function
$[0 \dots 255]$	$[0 \dots 255]$

Linear Equalization

Linear equalization with 1.00% is the default for new scenes. Commonly it displays images with a higher contrast as without image equalization.

Linear equalization maps each color Red, Green, and Blue (RGB) from an input range $[c_\mathrm{min} \dots c_\mathrm{max}]$ to the available screen intensity range $[0 \dots 255]$ by a linear mapping. The input range can be modified by the percentage parameter $p$ . The input range is computed such that p percent of the pixels are not part of the input range. In case $p=0$ this means the range of used color values is stretched to the range [0….255]. For $p>0$ the mapping ignores $\frac {p}{2} \%$ of the darkest pixels and $\frac {p}{2} \%$ of the brightest pixels. In many cases a small value of p lead to better results because the available color range can be better used for the relevant data by ignoring the outliers.