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Format

Portable Pixel Map - Binary

Summary

Name
Portable Pixel Map - Binary
Identifiers
PUID: fmt/408
Description
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
Format encoding
Binary
File extensions
ppm, ppmb
Submitted by
Georgia Tech Research Institute / Georgia Tech Research Institute

Internal signatures

Portable Pixel Map - Binary with comment

Description
“P6” followed by comment, followed by width, height, colour.
Provenance
PPM. User Manual for Netpbm http://netpbm.sourceforge.net/doc/ppm.html

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
5036(20|0D|0A)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)
Endianness
None

Portable Pixel Map - Binary without comment

Description
“P6” followed by width, height.
Provenance
PPM. User Manual for Netpbm http://netpbm.sourceforge.net/doc/ppm.html

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
5036(20|0D|0A){0-2}23{0-70}0A(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)(30|31|32|33|34|35|36|37|38|39|20|0A|0D)
Endianness
None

Changelog

  • V58

    Release date
    21 March 2012
    • Added format

      Portable Pixel Map - Binary: Submission from Georgia Tech Research Institute, USA. Outline entry added.

    • Added signature

      Portable Pixel Map - Binary with comment: Signature submitted by Georgia Tech Research Institute, USA.