IM: PNM - Netpbm Portable Image Map

IM - An Imaging Tool

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PNM - Netpbm Portable Image Map
[File Formats]

Description

PNM formats Copyright Jef Poskanzer
Internal Implementation.

Features

    Data Types: Byte and UShort
    Color Spaces: Gray, RGB and Binary
    Compressions: 
      NONE - no compression [default]
      ASCII (textual data)
    Can have more than one image, but sequencial access only.
    No alpha channel.
    Internally the components are always packed.
    Internally the lines are arranged from top down to bottom.
    Handle() returns imBinFile* pointer.
 
    Attributes:
      Description (string)

    Comments:
      In fact ASCII is an expansion...


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