Module `pnm`

Decoding of netpbm image formats (pbm, pgm, ppm and pam).

The formats pbm, pgm and ppm are fully supported. Only the official subformats (BLACKANDWHITE, GRAYSCALE, RGB, BLACKANDWHITE_ALPHA, GRAYSCALE_ALPHA, and RGB_ALPHA) of pam are supported; custom tuple types have no clear interpretation as an image and will be rejected.

Structs

ArbitraryHeader Header produced by a pam file ("Portable Arbitrary Map")
BitmapHeader Header produced by a pbm file ("Portable Bit Map")
GraymapHeader Header produced by a pgm file ("Portable Gray Map")
PixmapHeader Header produced by a ppm file ("Portable Pixel Map")
PnmDecoder PNM decoder
PnmEncoder Encodes images to any of the pnm image formats.
PnmHeader Stores the complete header data of a file.

Enums

ArbitraryTuplType Standardized tuple type specifiers in the header of a pam.
PnmSubtype Denotes the category of the magic number
SampleEncoding The kind of encoding used to store sample values