IMAGE_TO_J2K

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 DOT Hampson AT Pobox DOT com> based on the output of image_to_j2k −h as part of the Debian packaging of OpenJPEG

COPYRIGHT

Copyright 2007 Paul Hampson

SEE ALSO

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