image_to_j2k

Langue: en

Version: 2009-03-09 (debian - 07/07/09)

Section: 1 (Commandes utilisateur)

Sommaire

NAME

image_to_j2k - convert a PNM, PGM, PPM, PGX or BMP into a J2K or JP2 file

SYNOPSIS

DESCRIPTION

image_to_j2k converts an image into a JPEG 2000-encoded image

OPTIONS

-ImgDir sourcedir
Directory of PGM, PPM, PNM, PGX or BMP files to convert
-OutFor extension
J2K or JP2 output file format
-i source
PNM, PGM or PPM file to convert
-o destination
J2K or JP2 file to output to
-h
Display help information
-cinema2k fps
Digital Cinema 2K profile compliant codestream for 2K resolution. 24 or 48 fps.
-cinema4k [fps]
Digital Cinema 4K profile compliant codestream for 4K resolution. fps default is 24
-r ratios
compression factor for successive layers, comma seperated
-q psnr
psnr for successive layers, comma seperated
-n rescount
number of resolutions
-b blocksize
width and height of code block, comma-seperated
-c precintsize
width and height of precinct, comma-seperated
-t tilesize
width and height of tile, comma-seperated
-p progression
progression order, one of LRCP, RLCP, RPCL, PCRL, CPRL
-s subsampling
subsampling factor in X and Y, comma-seperated. Values larger than 2 can produce errors
-POC orders
progression order change
-SOP
write SOP marker before each packet
-EPH
write EPH marker after each header packet
-M modeflags
Sum of the values of the modes, as follows:
1. BYPASS (LAZY)
2. RESET
4. RESTART (TERMALL)
8. VSC
16. ERTERM (SEGTERM)
32. SEGMARK (SEGSYM)
-x indexfile
create an index file
-ROI:quantize
quantization indices upshifted for component c between 0 and 2 inclusive with an upshift of U between 0 and 37 inclusive
-d imageoffset
X and Y offset of the origin of the image, comma-seperated
-T tileoffset
X and Y offset of the origin of the tiles, comma-seperated
-I
use the irreversible DWT 9-7

EXAMPLE

ratios: 20,10,1 Quality 1: compress 20x; Quality 2: compress 10x; Quality 3: lossless compression

psnr: 30,40,50

quantize: c=0,U=25

orders: T1=0,0,1,5,3,CPRL Title 1: Resolution 0 start, component 0 start, layer 1 end, resolution 5 end, component 3 end, CPRL progression

AUTHOR

Written by Paul Hampson <Paul.Hampson@Pobox.com> based on the output of image_to_j2k -h as part of the Debian packaging of OpenJPEG Copyright 2007 Paul Hampson

SEE ALSO

j2k_to_image(1), <http://www.openjpeg.org/index.php?menu=doc#encoder>