Desc: This routine updates Equirectangular projection keywords
in geoJpeg2000 headers.

routine by Frank Warmerdam
License: This program is placed in the public domain.

v2 update on Jan 10, 2023 to not touch already corrected labels 
by the HiRISE team. 

Purpose: This program attempts to modify the CenterLatGeoKey tag
in a GeoTIFF or GeoJP2 image file to be StandardParallel1GeoKey.
The primarily valuable to fix up GeoJP2's mistakenly generated with
the incorrect parameters for the Equirectangular projection per:
http://trac.osgeo.org/gdal/ticket/2706

It just alters a few bytes in the geotiff section of the .jp2 files
and would not require decompressing and recompressing the jpeg2000 
imagery. 

Usage:
fix_jp2_v2 targetfile.jp2

tip to compile:
g++ -o fix_jp2_v2 fix_jp2_v2.cpp

Windows executable built as a console/commandline routine
using Visual Studio Community 2017

contact:
Trent Hare 
thare@usgs.gov