Add GDAL wrapper python

gdal_wrapper.py

+import sys
+import argparse 
+import subprocess 
+
+
+def gdal_translate(input_filename, output_filename, reduction_percent):
+    gdal_cmd = ["gdal_translate", "-outsize", f"{reduction_percent}%", f"{reduction_percent}%", 
+               input_filename, output_filename]
+    proc = subprocess.Popen(gdal_cmd, stdout = subprocess.PIPE, stderr=subprocess.STDOUT)
+    out, err = proc.communicate()
+    print(out)
+    return proc.returncode, output_filename
+    
+
+if __name__ == "__main__":
+    parse = argparse.ArgumentParser(description="Runs gdal_translate -outsize to reduce input size by n%")
+    parse.add_argument("--input_file", help="Input file to use", required=True)
+    parse.add_argument("--output_file", help="Output file to write", required=True)
+    parse.add_argument("--outsize", help="Reduction size", required=True)
+    args = parse.parse_args()
+    exit_code, output = gdal_translate(args.input_file, args.output_file, args.outsize)
+    if exit_code != 0:
+        print(f"gdal_translate failed with a non-zero exit code: {exit_code}")
+        exit(exit_code)
+    
\ No newline at end of file

run.sh

+#!/bin/bash
+
+INPUT_FILENAME=$(ls -d input/*)
+OUTPUT_FILENAME=$1
+REDUCTION_SIZE=$2
+
+# Get path to this run.sh script
+basedir=$( cd "$(dirname "$0")" ; pwd -P )
+
+python ${basedir}/gdal_wrapper.py --input_file ${INPUT_FILENAME} --output_file output/${OUTPUT_FILENAME} --outsize ${REDUCTION_SIZE}