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