223 lines
6.1 KiB
Groff
223 lines
6.1 KiB
Groff
'\" t
|
|
'\" The line above instructs most `man' programs to invoke tbl
|
|
'\"
|
|
'\" Separate paragraphs; not the same as PP which resets indent level.
|
|
.de SP
|
|
.if t .sp .5
|
|
.if n .sp
|
|
..
|
|
'\"
|
|
'\" Replacement em-dash for nroff (default is too short).
|
|
.ie n .ds m " -
|
|
.el .ds m \(em
|
|
'\"
|
|
'\" Placeholder macro for if longer nroff arrow is needed.
|
|
.ds RA \(->
|
|
'\"
|
|
'\" Decimal point set slightly raised
|
|
.if t .ds d \v'-.15m'.\v'+.15m'
|
|
.if n .ds d .
|
|
'\"
|
|
'\" Enclosure macro for examples
|
|
.de EX
|
|
.SP
|
|
.nf
|
|
.ft CW
|
|
..
|
|
.de EE
|
|
.ft R
|
|
.SP
|
|
.fi
|
|
..
|
|
.TH opj_compress 1 "Version 2.1.1" "opj_compress" "converts to jpeg2000 files"
|
|
.P
|
|
.SH NAME
|
|
opj_compress \-
|
|
This program reads in an image of a certain type and converts it to a
|
|
jpeg2000 file. It is part of the OpenJPEG library.
|
|
.SP
|
|
Valid input image extensions are
|
|
.B .bmp, .pgm, .pgx, .png, .pnm, .ppm, .raw, .tga, .tif \fR. For PNG resp. TIF it needs libpng resp. libtiff .
|
|
.SP
|
|
Valid output image extensions are
|
|
.B .j2k, .jp2
|
|
.SH SYNOPSIS
|
|
.P
|
|
.B opj_compress \-i \fRinfile.bmp \fB-o \fRoutfile.j2k
|
|
.P
|
|
.B opj_compress \-ImgDir \fRdirectory_name \fB-OutFor \fRjp2
|
|
.P
|
|
.B opj_compress \-h \fRPrint a help message and exit.
|
|
.P
|
|
.R See JPWL OPTIONS for special options
|
|
.SH OPTIONS
|
|
.TP
|
|
.B \-\^b " n,n"
|
|
(Size of code block (e.g. \-b 32,32). Default: 64 x 64)
|
|
.TP
|
|
.B \-\^c " n"
|
|
(Size of precinct (e.g. \-c 128,128). Default: 2^15 x 2^15)
|
|
.TP
|
|
.B \-\^cinema2K " fps"
|
|
Digital Cinema 2K profile compliant codestream. Valid \fBfps\fR values are 24 or 48.
|
|
.TP
|
|
.B \-\^cinema4K
|
|
Digital Cinema 4K profile compliant codestream. Does not need an fps: default is 24 fps.
|
|
.TP
|
|
.B \-\^d " X,Y"
|
|
(Offset of image origin (e.g. \-d 150,300))
|
|
.TP
|
|
.B \-\^h
|
|
Print a help message and exit.
|
|
.TP
|
|
.B \-\^i " name"
|
|
(input file name)
|
|
.TP
|
|
.B \-\^n " n"
|
|
(Number of resolutions. Default: 6)
|
|
.TP
|
|
.B \-\^o " name"
|
|
(output file name)
|
|
.TP
|
|
.B \-\^p " name"
|
|
Progression order. \fBname\fR can be one out of:LRCP, RLCP, RPCL, PCRL, CPRL. Default: LRCP.
|
|
.TP
|
|
.B \-\^q " n"
|
|
different psnr for successive layers
|
|
.br
|
|
.B Note: \fR(options \-r and \-q cannot be used together)
|
|
.TP
|
|
.B \-\^r " n"
|
|
different compression ratio(s) for successive layers. The rate specified for each quality level is the desired compression factor.
|
|
.br
|
|
.B Note: \fR(options \-r and \-q cannot be used together)
|
|
.TP
|
|
.B \-\^s " X,Y"
|
|
sub-sampling factor (e.g. \-s 2,2). Default: No sub-sampling in x or y direction.
|
|
.br
|
|
.B Remark: \fRsub-sampling bigger than 2 can produce errors.
|
|
.TP
|
|
.B \-\^t " W,H"
|
|
(Size of tile (e.g. \-t 512,512) )
|
|
.TP
|
|
.B \-\^x " name"
|
|
(Create index file and fill it. Default: no index file)
|
|
.TP
|
|
.B \-\^EPH
|
|
(Write EPH marker after each header packet. Default:no EPH)
|
|
.TP
|
|
.B \-\^F " rawWidth,rawHeight,rawComp,rawBitDepth,s_or_u"
|
|
characteristics of the raw input image
|
|
.TP
|
|
.B \-\^I
|
|
(Use the irreversible DWT 9-7. Default: Reversible DWT 5-3)
|
|
.TP
|
|
.B \-\^ImgDir " directory_name"
|
|
(directory containing input files)
|
|
.TP
|
|
.B \-\^M " n"
|
|
mode switch with values: 1, 2, 4, 8, 16, 32. Default:No mode switch activated.
|
|
.br
|
|
\fIMeaning:\fR
|
|
.br
|
|
BYPASS(1)
|
|
.br
|
|
RESET(2)
|
|
.br
|
|
RESTART(4)
|
|
.br
|
|
VSC(8)
|
|
.br
|
|
ERTERM(16)
|
|
.br
|
|
SEGMARK(32)
|
|
.br
|
|
Values can be added: RESTART(4) + RESET(2) + SEGMARK(32) = \-M 38
|
|
.TP
|
|
.B \-\^OutFor "ext"
|
|
(extension for output files)
|
|
.TP
|
|
.B \-\^POC "TtileNr=resolutionStart, componentStart, layerEnd, resolutionEnd, componentEnd, progressionOrder"
|
|
(see Examples)
|
|
.TP
|
|
.B \-\^ROI "c=n,U=n"
|
|
quantization indices upshifted for component c (0 or 1 or 2) with a value of U (>= 0 and <= 37)
|
|
.br
|
|
e.g. \fB-ROI c=0,U=25\fR
|
|
.TP
|
|
.B \-\^SOP
|
|
(Write SOP marker before each packet. Default: No SOP marker in the codestream.)
|
|
.TP
|
|
.B \-\^T "X,Y"
|
|
(Offset of the origin of the tiles (e.g. \-T 100,75) )
|
|
.TP
|
|
.B \-\^W
|
|
(see JPWL OPTIONS)
|
|
.P
|
|
.SH JPWL OPTIONS
|
|
Options usable only if the library has been compiled with \fB-DUSE_JPWL\fR
|
|
.P
|
|
.B \-W h<tilepart><=type>, s<tilepart><=method>, a=<addr>, z=<size>, g=<range>, p<tilepart:pack><=type>
|
|
.P
|
|
.B h\fR selects the header error protection (EPB): \fBtype\fR can be
|
|
[0=none 1,absent=predefined 16=CRC-16 32=CRC-32 37-128=RS]
|
|
if \fBtilepart\fR is absent, it is for main and tile headers
|
|
if \fBtilepart\fR is present, it applies from that tile
|
|
onwards, up to the next h<> spec, or to the last tilepart
|
|
in the codestream (max. 16 specs)
|
|
.P
|
|
.B p \fRselects the packet error protection (EEP/UEP with EPBs)
|
|
to be applied to raw data: \fBtype\fR can be
|
|
[0=none 1,absent=predefined 16=CRC-16 32=CRC-32 37-128=RS]
|
|
if \fBtilepart:pack\fR is absent, it is from tile 0, packet 0
|
|
if \fBtilepart:pack\fR is present, it applies from that tile
|
|
and that packet onwards, up to the next packet spec
|
|
or to the last packet in the last tilepart in the stream
|
|
(max. 16 specs)
|
|
.P
|
|
.B s \fRenables sensitivity data insertion (ESD): \fBmethod\fR can be
|
|
[\-1=NO ESD 0=RELATIVE ERROR 1=MSE 2=MSE REDUCTION 3=PSNR
|
|
4=PSNR INCREMENT 5=MAXERR 6=TSE 7=RESERVED]
|
|
if \fBtilepart\fR is absent, it is for main header only
|
|
if \fBtilepart\fR is present, it applies from that tile
|
|
onwards, up to the next s<> spec, or to the last tilepart
|
|
in the codestream (max. 16 specs)
|
|
.P
|
|
.B g \fRdetermines the addressing mode: \fBrange\fR can be
|
|
[0=PACKET 1=BYTE RANGE 2=PACKET RANGE]
|
|
.P
|
|
.B a \fRdetermines the size of data addressing: \fBaddr\fR can be
|
|
2/4 bytes (small/large codestreams). If not set, auto-mode
|
|
.P
|
|
.B z \fRdetermines the size of sensitivity values: \fBsize\fR can be
|
|
1/2 bytes, for the transformed pseudo-floating point value
|
|
.P
|
|
.SH EXAMPLES
|
|
.P
|
|
.B opj_compress \-i \fRfile.bmp \fB-o \fRfile.j2k \fB-r \fR20,10,1 (compress 20x, then 10x, then lossless).
|
|
.P
|
|
.B opj_compress \-i \fRfile.ppm \fB-o \fRfile.j2k \fB-q \fR30,40,50
|
|
.P
|
|
.B opj_compress \-i \fRfile.pgx \fB-o \fRfile.j2k \fB-POC \fRT1=0,0,1,5,3,CPRL
|
|
.P
|
|
.B opj_compress \-i \fRlena.raw \fB-o \fRlena.j2k \fB-F \fR512,512,3,8,u
|
|
.P
|
|
.SH AUTHORS
|
|
Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
|
|
.br
|
|
Copyright (c) 2002-2014, Professor Benoit Macq
|
|
.br
|
|
Copyright (c) 2001-2003, David Janssens
|
|
.br
|
|
Copyright (c) 2002-2003, Yannick Verschueren
|
|
.br
|
|
Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
|
|
.br
|
|
Copyright (c) 2005, Herve Drolon, FreeImage Team
|
|
.br
|
|
Copyright (c) 2006-2007, Parvatha Elangovan
|
|
.P
|
|
.SH "SEE ALSO"
|
|
opj_decompress(1) opj_dump(1)
|
|
|