This is the opj_dump utility from the OpenJPEG project.
It dumps JPEG 2000 codestream info to stdout or a given file.
It has been compiled against openjp2 library v2.5.4.

Parameters:
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  -ImgDir <directory>
	Image file Directory path
  -i <compressed file>
    REQUIRED only if an Input image directory not specified
    Currently accepts J2K-files, JP2-files and JPT-files. The file type
    is identified based on its suffix.
  -o <output file>
    OPTIONAL
    Output file where file info will be dump.
    By default it will be in the stdout.
  -v     OPTIONAL
    Enable informative messages
    By default verbose mode is off.