ilbmtoppm man page on Raspbian

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ilbmtoppm(1)							  ilbmtoppm(1)

NAME
       ilbmtoppm - convert an ILBM file into a portable pixmap

SYNOPSIS
       ilbmtoppm [-verbose] [-ignore<chunkID>] [-isham|-isehb] [-adjustcolors]
       [ILBMfile]

DESCRIPTION
       Reads an IFF ILBM file as input.	 Produces a portable pixmap as output.
       Supported ILBM types are:

       Normal ILBMs with 1-16 planes.

       Amiga Extra_Halfbrite (EHB)

       Amiga HAM with 3-16 planes.

       24 bit.

       Multiplatte (normal or HAM) pictures.

       Color map (BMHD + CMAP chunk only, nPlanes = 0).

       Unofficial direct color.
	      1-16 planes for each color component.

       Chunks used:
	      BMHD, CMAP, CAMG (only HAM & EHB flags used), PCHG, BODY unoffi‐
	      cial DCOL chunk to identify direct color ILBM

       Chunks ignored:
	      GRAB, DEST, SPRT, CRNG, CCRT, CLUT, DPPV, DRNG, EPSF

       Other chunks (ignored but displayed in verbose mode):
	      NAME, AUTH, (c), ANNO, DPI

       Unknown chunks are skipped.

OPTIONS
       -verbose
	      Give some information about the ILBM file.

       -ignore <chunkID>
	      Skip a chunk.  <chunkID> is the 4-letter IFF chunk identifier of
	      the chunk to be skipped.

       -isham | -isehb
	      Treat  the  input file as a HAM or Extra_Halfbrite picture, even
	      if these flags or not set in the CAMG chunk (or if there	is  no
	      CAMG chunk).

       -adjustcolors
	      If  all  colors  in the CMAP have a value of less then 16, ilbm‐
	      toppm assumes a 4-bit colormap and gives a warning.   With  this
	      option the colormap is scaled to 8 bits.

BUGS
       The  multipalette PCHG BigLineChanges and Huffman decompression code is
       untested.

REFERENCES
       Amiga ROM Kernel Reference Manual - Devices (3rd Ed.)
       Addison Wesley, ISBN 0-201-56775-X

SEE ALSO
       ppm(5), ppmtoilbm(1)

AUTHORS
       Copyright (C) 1989 by Jef Poskanzer.
       Modified October 1993 by Ingo Wilken (Ingo.Wilken@informatik.uni-olden‐
       burg.de)

				04 October 1993			  ilbmtoppm(1)
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