Module alpha 

Alpha-plane parsing and reconstruction helpers.

Structs

AlphaHeader

Parsed one-byte ALPH header.

Functions

apply_alpha_plane

Replaces the alpha channel of an RGBA image with a decoded alpha plane.

decode_alpha_plane

Decodes an ALPH payload to a single-channel alpha plane.

parse_alpha_header

Parses the one-byte header that prefixes an ALPH payload.