Low-level representation of an image
Reference to a chunk
Iterator of chunk metadata, returns ChunkRef
which is like a slice of PNG metadata
Color mode of an image. Contains all information required to decode the pixel
bits to RGBA colors. This information is the same as used in the PNG file
format, and is used both for PNG and raw image data in LodePNG.
Settings for zlib compression. Tweaking these settings tweaks the balance between speed and compression ratio.
Read an image with custom settings
Settings for the decoder. This contains settings for the PNG and the Zlib decoder, but not the Info
settings from the Info
structs.
Make an image with custom settings
A Grayscale
pixel (rgb crate v0.8)
A pixel for grayscale value + alpha components (rgb crate v0.8)
Information about the PNG image, except pixels, width and height
A Red + Green + Blue
pixel.
The information of a Time
chunk in PNG
Same as decode_memory
, but always decodes to 24-bit RGB raw image
Same as decode_memory
, but always decodes to 32-bit RGBA raw image
Same as decode_file
, but always decodes to 24-bit RGB raw image
Same as decode_file
, but always decodes to 32-bit RGBA raw image
Load PNG from disk, from file with given name.
Same as the other decode functions, but instead takes a file path as input.
Converts PNG data in memory to raw pixel data.
Same as encode_memory
, but always encodes from 24-bit RGB raw image
Same as encode_memory
, but always encodes from 32-bit RGBA raw image
Same as encode_file
, but always encodes from 24-bit RGB raw image
Same as encode_file
, but always encodes from 32-bit RGBA raw image
Converts raw pixel data into a PNG file on disk.
Same as the other encode functions, but instead takes a file path as output.
Converts raw pixel data into a PNG image in memory. The colortype and bitdepth
of the output PNG image cannot be chosen, they are automatically determined
by the colortype, bitdepth and content of the input pixel data.