img2rr

This command creates reduced resolution images, also known as a pyramid image structure from the input image. Reduced resolution layers are created by iteratively downsampling the full resolution image. The results are stored in a .ovr (overview) file. This structure improves the efficiency of arbitrary access to different spatial resolutions and areas of interest. The OSSIM library will automatically select the appropriate layer and area of interest for needed operations.

Usage: img2rr [options] <input file>
Options:
  --disable-elev           Will disable the elevation
  --disable-notify         Takes an argument. Arguments are ALL, WARN, NOTICE,
                           INFO, FATAL, DEBUG.  If you want multiple disables
                           then just do multiple --disable-notify on the command
                           line.  All argument are case insensitive.  Default is
                           all are enabled.
  --list-entries           Lists the entries within the image
  --ossim-logfile          takes a logfile as an argument.  All output messages
                           are redirected to the specified log file.  By default
                           there is no log file and all messages are enabled.
  -K                      specify individual keywords to add to the preferences
                           keyword list: name=value
  -P                      specify a preference file to load
  -T                      specify the classes to trace, ex:
                           ossimInit|ossimImage.* 
                           will trace ossimInit and all ossimImage classes
  -a or --include-fullres  Wants to include full res dataset as well as reduced
                           res sets.
  -e or --entry            Give the entry(zero based) to build an overview for.
  -h or --help             Shows help

Examples

ossim-img2rr -t ossim_kakadu_nitf_j2k --create-histogram-fast --histogram-r0 --entry 2 data\cadrg\cdrgxGNCJNCN_10\RPF\a.toc