readme.txt

图像压缩

// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

//      THREEE DIMENSIONAL SPIHT COMPRESSION

// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
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//
// Copyright (c) 1995, 1996, 1997 by  Beong-Jo Kim, William A. Pearlman,
// and Amir Said.

// This program is Copyright (c) and under protection of patent.
// It may not be redistributed without the consent of the copyright
// holders. In no circumstances may the copyright notice be removed.
// The program may not be sold for profit nor may they be incorporated
// in commercial programs without the written permission of the copyright
// and patent holders. This program is provided as is, without any express or
// implied warranty, without even the warranty of fitness for a
// particular purpose.

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Note: 	The routines (algorithm) may have bugs, despite our best efforts 
	to remove as many as possible. Also, the program has 
	never been optimized to minimize computational time.

	Input sequence should be monochrome Sun Raster file format
	with frame naming convention sequence_name001, sequence_name002,
	..., etc.  There should no .ras extensions.  The keyword for the 
	sequence is sequence_name. 
	The program codes or decodes 16 frames for each run.
	Decoding from the compressed file may be done at any rate less
	than or equal to that used to create the compressed file.

Usage:	For usage info, type "codetree3D -u"
	For interactive mode, type "codetree3D"
	For command line mode, type
	"codetree3D sequence_name sequence_name.cmp first last 
	pel_bytes(always 1) bits/pel"
	This program process 16 frames in a GOF. So, last - first = 15.

	Example - To encode frames 17 to 32 of the sequence "football"
	at the rate of 1.0 bits/pel:
	 > codetree3D football football.cmp 17 32 1 1.0"

	 To decompress "football.cmp" at rate of 0.5 bits/pel and
	 write the reconstructed sequence "football_r050":
          > decdtree3D football.cmp football_r050 17 32  0.5