文件列表:

openjpeg_v097\openjpeg\codec\.cvsignore (36, 2003-11-27)
openjpeg_v097\openjpeg\codec\compat\getopt.c (4007, 2004-04-29)
openjpeg_v097\openjpeg\codec\compat\getopt.h (275, 2004-04-29)
openjpeg_v097\openjpeg\codec\convert.c (25368, 2005-03-25)
openjpeg_v097\openjpeg\codec\convert.h (1928, 2004-04-29)
openjpeg_v097\openjpeg\codec\image_to_j2k.c (31732, 2005-02-11)
openjpeg_v097\openjpeg\codec\image_to_j2k.dsp (7086, 2004-07-07)
openjpeg_v097\openjpeg\codec\j2k_to_image.c (23514, 2005-03-25)
openjpeg_v097\openjpeg\codec\j2k_to_image.dsp (6994, 2004-07-07)
openjpeg_v097\openjpeg\codec\Makefile (2471, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\bio.c (3230, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\bio.h (1709, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\cio.c (3300, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\cio.h (1906, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\fix.c (1777, 2003-11-27)
openjpeg_v097\openjpeg\indexer_JPIP\fix.h (1603, 2003-11-27)
openjpeg_v097\openjpeg\indexer_JPIP\index_create.c (35733, 2004-07-16)
openjpeg_v097\openjpeg\indexer_JPIP\int.c (2667, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\int.h (1817, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\j2k.h (13563, 2004-07-16)
openjpeg_v097\openjpeg\indexer_JPIP\jp2.c (6668, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\jp2.h (1751, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\jpip.c (21804, 2004-04-19)
openjpeg_v097\openjpeg\indexer_JPIP\jpip.h (1843, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\Makefile (507, 2003-11-27)
openjpeg_v097\openjpeg\indexer_JPIP\pi.c (14851, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\pi.h (2513, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\t2.c (11769, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\t2.h (2043, 2003-11-27)
openjpeg_v097\openjpeg\indexer_JPIP\tcd.c (11921, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\tcd.h (3704, 2003-11-27)
openjpeg_v097\openjpeg\indexer_JPIP\tgt.c (4586, 2004-02-13)
openjpeg_v097\openjpeg\indexer_JPIP\tgt.h (2668, 2003-11-27)
openjpeg_v097\openjpeg\j2kviewer\build.xml (1228, 2004-02-18)
openjpeg_v097\openjpeg\j2kviewer\src\Exec.java (6918, 2004-02-18)
openjpeg_v097\openjpeg\j2kviewer\src\ImageViewer.java (5684, 2004-02-18)
openjpeg_v097\openjpeg\j2kviewer\src\MML.java (1704, 2004-02-18)
openjpeg_v097\openjpeg\j2kviewer\src\PgmImage.java (2032, 2004-02-18)
openjpeg_v097\openjpeg\libopenjpeg\.cvsignore (36, 2003-11-27)
... ...

List of parameters for the coder JPEG 2000 : Date : June the 25th, 2003 Author : Yannick Verschueren Contact : verschueren@tele.ucl.ac.be - the option -help displays the readme.txt file on screen - The markers COD and QCD are writed both of two in the main_header and never appear in the tile_header. The markers in the main header are : SOC SIZ COD QCD COM. - This coder can encode mega image, a test was made on a 24000x24000 pixels color image. You need enough disk space memory (twice the original) to encode the image. (i.e. for a 1.5 Gb image you need a minimum of 3Gb of disk memory) REMARKS : --------- * the value of rate enter in the code line is the compression factor ! exemple : -r 20,10,1 means quality 1 : compress 20x, quality 2 : compress 10x and quality 3 : compress 1x = lossless * The number of resolution can be modified by the program in view to respect profile-0 conditions (Taubman, Marcelin (2002), "JPEG2000, image compression fundamentals, standards and practice", p700) By default : ------------ * lossless * 1 tile * size of precinct 2^15 x 2^15 (means 1 precinct) * size of code-block *** x *** * Number of resolution : 6 * No SOP marker in the codestream * No EPH marker in the codestream * No sub-sampling in x and y direction * No mode switch activated * progression order : LRCP * No index file * No ROI upshifted * No offset of the origin of the image * No offset of the origin of the tiles * Reversible DWT 5-3 Parameters : ------------ -i : source file (-i source.pnm also *.pgm, *.ppm) "required" -o : destination file (-o dest.j2k) "required" -r : different rates (-r 20,10,5) "optional" -n : Number of resolution (-n 3) "optional" -b : size of code block (-b 32,32) "optional" -c : size of precinct (-c 128,128) "optional" -t : size of tile (-t 512,512) "optional" -p : progression order (-p LRCP) [LRCP, RLCP, RPCL, PCRL, CPRL] "optional" -s : subsampling factor (-s 2,2) [-s X,Y] "optional" -SOP : write SOP marker before each packet "optional" -EPH : write EPH marker after each header packet "optional" -M : mode switch (-M 3) [1= BYPASS(LAZY) 2=RESET 4=RESTART(TERMALL) 8=VSC 16=ERTERM(SEGTERM) 32=SEGMARK(SEGSYM)] "optional" for several mode switch you have to add the value of each mode you want ex : RESTART(4) + RESET(2) + SEGMARK(32) = -M 38 -x : Create an index file *.Idx (-x index_name.Idx) "optional" -ROI:c=%d,U=%d : quantization indices upshifted for component c=%d [%d = 0,1,2] with a value of U=%d [0 <= %d <= 37] (i.e. -ROI:c=0,U=25) "optional" -d : offset of the origin of the image (-d 150,300) "optional" -T : offset of the origin of the tiles (-T 100,75) "optional" -I : Use the irreversible DWT 9-7 (-I) "optional" IMPORTANT : ----------- * subsampling bigger than 2 can produce error The index file respect the structure below : --------------------------------------------- Image_height Image_width progression order Tiles_size_X Tiles_size_Y Components_nb Layers_nb decomposition_levels Precincts_size_X Precincts_size_Y Main_header_end_position Codestream_size Tile0 start_pos end_Theader end_pos Tile1 " " " ... TileN " " " Tpacket_0 Tile layer res. comp. prec. start_pos end_pos ... Tpacket_M " " " " " " "

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