Module png::decoder::transform

Transforming a decompressed, unfiltered row into the final output.

Modules

• palette 🔒
  Helpers for taking a slice of indices (indices into PLTE and/or trNS entries) and transforming this into RGB or RGBA output.

Functions

• copy_row 🔒
• create_transform_fn
  Returns a transformation function that should be applied to image rows based on 1) decoded image metadata (info) and 2) the transformations requested by the crate client (transform).
• expand_gray_u8 🔒
• expand_gray_u8_with_trns 🔒
• expand_trns_and_strip_line16 🔒
• expand_trns_line 🔒
• expand_trns_line16 🔒
• transform_row_strip16 🔒
• unpack_bits 🔒

Type Aliases

• TransformFn
  Type of a function that can transform a decompressed, unfiltered row (the 1st argument) into the final pixels (the 2nd argument), optionally using image metadata (e.g. PLTE data can be accessed using the 3rd argument).