Colour analysis

Tools for describing colour in a way that supports concentration detection: paths through colour space traced by a dye as its concentration changes, ranges and spectra around reference colours, and maps associating labels with colours.

Colour paths, ranges and spectra

ColorPath([colors, base_color, ...])	Piecewise linear color path in RGB space.
define_color_path(image, mask)	Interactive setup of a color path based on an image.
ColorRange(min_color, max_color[, color_mode])	Class to track the range of colors in an image or a set of images.
DiscreteColorRange(color_range[, resolution])	A ColorRange discretised into a fixed number of bins.
ColorSpectrum(base_color, spectrum, ...)	Data structure to hold a (discrete) color spectrum.
ColorMode(*values)	Whether a colour signal is treated as absolute or relative to a baseline.
get_mean_color(image[, mask])	Calculate the mean color of an image, optionally masked by a boolean mask.

Label-to-colour maps

LabelColorMap([colors])	Mapping from integer labels to representative RGB colours.
LabelColorPathMap([color_paths])	Mapping between integer labels and their corresponding color paths.
LabelColorSpectrumMap([color_spectra])	Mapping between integer labels and their corresponding color spectra.
LabelColorPathMapRegression(labels, color_range)	Algorithmic definition of relative color paths through regression for labeled images.