Commit Graph

20 Commits

Author SHA1 Message Date
Francois-Olivier Devaux 7cb2194c8e Algorithmic optimizations in t1.c, thanks to Guido J. ! 2007-02-21 07:57:27 +00:00
Francois-Olivier Devaux ed3aec55fd Copyright update 2007-01-15 09:55:40 +00:00
Antonin Descampe 817681fb98 fixed a bug in t1.c that prevented in some cases a true lossless compression (thanks to Don Mimlitch for reporting this bug) 2006-03-19 18:51:32 +00:00
Antonin Descampe 72de930d08 fixed two initialization problems in t1.c and tcd.c 2006-01-27 16:29:41 +00:00
Antonin Descampe fe33ebe83c fixed a bug in t1_getwmsedec (stepsize was divided by 8192) 2005-12-08 11:01:59 +00:00
Antonin Descampe 95bc884365 OpenJPEG version 1.1 2005-12-08 09:38:47 +00:00
Antonin Descampe f61cda9b7d openjpeg version 1.0 (previous version still available with tag opj0-97) 2005-12-02 13:34:15 +00:00
Antonin Descampe 0ea26e7ba6 small change to avoid signed/unsigned warning during compilation 2005-11-04 11:10:38 +00:00
Antonin Descampe 8f3bd54c3d Changes proposed by Mathieu Malaterre from the GDCM project... Thanks a lot Mathieu
- '//' replaced by '/* */'
- inclusion of int.h in int.c
- inclusion of j2k.h in int.h in order to export symbols
- adding (void) var when a variable is declared but not used
- some explicit cast
- CLOCKS_PER_SEC is declared as float in bcc55, so there is a need to cast it to int for the modulo operation
- some variables changed from float -> double
2005-11-01 10:15:34 +00:00
Antonin Descampe 7ee36c3a4c 1) quantization stepsizes stored as float instead of shifted integers -> fixes a pb of precision when using very small stepsizes. 2) bug fixed when decoding until bitplane 0 -> r-value (1/2) added to the coefficient. 2005-10-27 07:49:29 +00:00
Francois-Olivier Devaux 32ba9920db At lines 577, 692 and 699, zeroing of effective region of code-block rather than the 1024*1024 allocated integers of code-block. This optimization has been proposed by Dmitry Kolyadin. Thanks for your help ! 2005-06-02 15:28:37 +00:00
Francois-Olivier Devaux f9eb8f93c2 Code optimization: t1_flags and t1_data set to zero with memset 2005-05-24 12:15:52 +00:00
Francois-Olivier Devaux 1bdb07cefe fprintf correctly redirected to stderr or stdout 2004-11-15 12:41:35 +00:00
Antonin Descampe 8d2121606d Minor changes for RESET mode 2004-07-16 09:08:27 +00:00
Antonin Descampe bc563fc5ba * Quantization bug fixed when using 9x7 DWT (comment keyword : quantizbug1)
* Multiplication bug fixed when dividing by 8192 (comment keyword : multbug1)
2004-07-13 09:17:17 +00:00
Antonin Descampe a4911967eb * Fixed_quality option added : specifying -q psnr1,psnr2,psnr3,... at the command line when encoding an image generates layers with the corresponding psnr. You have to specify values in the increase order. This option is incompatible with "-r" or "-f" options.
* Old -q option is now available with -f

* The INDEX-file structure has been modified and is now like this :
------------------------------
image_width image_height
progression order
tile_width tile_height
nb_tiles_width nb_tiles_height
nb_components
nb_layers
nb_decompositions
foreach resolution_level {[precinct_width,precinct_height]}
main_header_end
codestream_size
foreach tile {
  tileno start_pos end_header end_pos squarred_error_total nb_pixels mean_squarred_error
}
foreach tile {
  foreach packet {
    packetno tileno layerno resno compno precinctno start_pos end_pos SE_reduction
  }
}
SE max
SE total
-----------------------------
2004-05-07 13:50:47 +00:00
Sebastien Lugan 64c34e0d52 Reformatage : indent -kr -i2 -ci2 $(find . -name '*.c') $(find . -name '*.h') 2004-04-29 13:27:24 +00:00
Sebastien Lugan ec9bd9f6a4 Reformatage : indent -kr $(find . -name '*.c') $(find . -name '*.h') 2004-04-29 13:10:05 +00:00
Yannick Verschueren bb349b2cee Update for version 0.8 2004-02-13 09:47:40 +00:00
Sebastien Lugan 2ad6a9770a Initial revision 2003-11-27 10:10:17 +00:00