diff options
Diffstat (limited to 'src/bin/jp2/opj_compress.c')
| -rw-r--r-- | src/bin/jp2/opj_compress.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/bin/jp2/opj_compress.c b/src/bin/jp2/opj_compress.c index 4a0baed6..58fdaaec 100644 --- a/src/bin/jp2/opj_compress.c +++ b/src/bin/jp2/opj_compress.c @@ -169,16 +169,17 @@ static void encode_help_display(void) fprintf(stdout, " Different compression ratios for successive layers.\n"); fprintf(stdout, " The rate specified for each quality level is the desired\n"); - fprintf(stdout, " compression factor (use 0 for lossless)\n"); + fprintf(stdout, " compression factor (use 1 for lossless)\n"); fprintf(stdout, " Decreasing ratios required.\n"); - fprintf(stdout, " Example: -r 20,10,0 means \n"); + fprintf(stdout, " Example: -r 20,10,1 means \n"); fprintf(stdout, " quality layer 1: compress 20x, \n"); fprintf(stdout, " quality layer 2: compress 10x \n"); fprintf(stdout, " quality layer 3: compress lossless\n"); fprintf(stdout, " Options -r and -q cannot be used together.\n"); fprintf(stdout, "-q <psnr value>,<psnr value>,<psnr value>,...\n"); fprintf(stdout, " Different psnr for successive layers (-q 30,40,50).\n"); - fprintf(stdout, " Increasing PSNR values required.\n"); + fprintf(stdout, " Increasing PSNR values required, except 0 which can\n"); + fprintf(stdout, " be used for the last layer to indicate it is lossless.\n"); fprintf(stdout, " Options -r and -q cannot be used together.\n"); fprintf(stdout, "-n <number of resolutions>\n"); fprintf(stdout, " Number of resolutions.\n"); |