API Reference ExPng v0.2.0
ExPng is a pure Elixir implementation of the PNG image format.
Struct storage format for any ancillary chunks present in a parsed PNG image
ExPng does not make use of these, but saves them in order to
retain the full original state of an image's raw data.
Representation of the IEND final chunk in an encoded PNG image. This is an
empty data chunk, but required for properly decoding an image to mark the end
of the image's data, and serves as a bookend when encoding an
Stores the data collected from a PNG's header data chunk. This chunk enodes information about
Stores the raw data of an IDAT image data chunk from a PNG image.
Representation of the color palette for a PNG image encoded using the indexed filter method.
Utility module for aliasing various integer constants used by the library
ExPng.Encodeable is a basic behaviour to mark a raw data chunk as encodeable
and provide a callback to convert the struct to a binary bytestring to be
written to a PNG file.
Utility module containing functions necessary for decoding a PNG image file
Utility module to hold functions related to drawing on images.
Utility module containing functtions necessary to encode an
back into a PNG file.
This module contains code for filtering and defiltering lines of bytestring image data
This module contains code for converting between unfiltered bytestrings and
Represents a single pixel in an image, storing red, green, blue and alpha values, or an index when part of a paletted image.
Shared utility functions.