opj_compress(1) on Linux
The text a5b7984298a3, as Debian 9 (Stretch) shipped it.
This program reads in an image of a certain type and converts it to a jpeg2000 file. It is part of the OpenJPEG library. Valid input image extensions are .bmp, .pgm, .pgx, .png, .pnm, .ppm, .raw, .tga, .tif . For PNG resp. TIF it needs libpng resp. libtiff . Valid output image extensions are .j2k, .jp2
Flags it lists
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-EPH -
-F -
-I -
-ImgDir -
-M -
-OutFor -
-ROI -
-SOP -
-T -
-W -
-b -
-c -
-cinema2K -
-cinema4K -
-d -
-h -
-i -
-n -
-o -
-p -
-q -
-r -
-s -
-t -
-x