C code tools for the BYU-MERS "SIR" image file format

This directory includes programs that illustrate how do call the basic
SIR files tools as well as tools to convert SIR file images into other forms
and extract geometric information.  Compile using using "make".

Examples:

  csirexample   : illustrate calling routines, reading SIR file
  
  sir_ez_example: illustrate ez calling routines, reading SIR file

  sir_dump      : creates an ASCII file of the SIR image values and locations


Program Tools:

  csir_locmap   : creates SIR images of the latitude and longitudue values
                  the pixels in the input SIR file
		  
  grd2non       : pixel replicate values in one SIR file to match another in size
                  (does not change projection)		  

  viewsirhead   : view SIR file header in human-readable form

  sirdiff       : compute difference between two SIR files with same projection
  sirdiff_mask

  sir_extractregion : extract a sub image from a SIR file, write to new SIR file

  sir2bmp       : convert SIR file image into BMP form with value scaling

  sir2byte      : convert SIR file image into one-byte per pixel with value scaling

  sir2gif       : convert SIR file image into GIF form with value scaling

  sirmask       : apply land mask to SIR image, write to new SIR file

  sir_modhead3  : modify contents of SIR file header (does not change projection)

  sir_remapper3 : combine and/or change projection of SIR files
  sir_remapper4

  sir_stats     : summarize statistics of image values in SIR file

  sir_util      : general interactive tool for converting SIR file into other file types
  sir_util2b


Last revised: 12 Oct 2022 DGL
(c) 1999, 2000, 2002, 2014, 2019, 2022 BYU MERS