Extra.Spectral

indices([online])	Gets the dictionary of available indices.
listIndices([online])	Gets the list of available indices.
spectralIndices(x[, index, G, C1, C2, L, ...])	Computes one or more spectral indices (indices are added as bands) for an image or image collection.
tasseledCap(x)	Calculates tasseled cap brightness, wetness, and greenness components for an image or image collection.
matchHistogram(source, target[, bands, ...])	Adjust the histogram of an image to match a target image.