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SIRpy
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Description
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A library of Python utilities for loading and displaying BYU .SIR file format 
data.  Includes some examples.

The code is general python.  It is a very simple translation of the SIR code
and is not intended to be very sophisticated.  For example much better 
schemes for storing the SIR header could be used.

Key files:
 sir_io.py -- scripts for reading sir files, extracting header values, printing
 sir_geom.py -- scripts for doing geometric transformations of sir file pixels
                using header information, e.e. pix2latlon, latlon2pix
 showsir.py -- displays contents of sir file
 printsirhead.py -- prints header of sir file
 sirresize.py -- resizes images contained in sir file
 plot_latlon_box.py -- illustrates plotting locations on display image

 sir2png.py -- convert a sir file to a png file (requires PyPng)
 sir2geotiff.py -- convert a sir file to a geotiff file (requires PyPng)

Author
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D.G. Long at BYU long@ee.byu.edu  3 Apr 2013

last revised: 25 Aug 2020