Module colormap 

Colormap LUT data and imagesc rendering (ASCII and SVG/PNG).

Enums

ColormapSpec

A colormap specification: either a built-in named colormap or a custom N×3 look-up table supplied by the user.

Constants

VALID_COLORMAPS

All supported colormap names.

Functions

apply_colormap

Maps a normalised value t ∈ [0, 1] to an (R, G, B) triple.

apply_colormap_spec

Maps a normalised value t ∈ [0, 1] to an (R, G, B) triple using spec.

compute_luminance

Computes per-pixel luminance L = 0.299·R + 0.587·G + 0.114·B.

validate_colormap

Validates a colormap name.

validate_colormap_spec

Validates a ColormapSpec, returning an error string on failure.