Staining | | Histogram

The simplest use case of color-mapping is thresholding.

This means that the scalar value are compared to a specific threshold value. If the threshold is exceeded the original gray-scale color of the data is substituted with a replacement color.

Thresholding is a standard technique of image manipulation applications such as gimp:

ThresholdingBefore ThresholdingAfter

Staining | | Histogram