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#!/usr/bin/env python3
###############################################################################
# $Id$
#
# Project: GDAL Python Samples
# Purpose: Report histogram from file.
# Author: Frank Warmerdam, warmerdam@pobox.com
#
###############################################################################
# Copyright (c) 2005, Frank Warmerdam, warmerdam@pobox.com
# Copyright (c) 2009, Even Rouault <even dot rouault at spatialys.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import sys
from osgeo import gdal
# =============================================================================
def Usage():
print("Usage: histrep.py [-force] input_file")
print(" or")
print(" histrep.py -req <min> <max> <buckets> [-force] [-approxok]")
print(" [-ioor] input_file")
print("")
return 2
def main(argv=sys.argv):
argv = gdal.GeneralCmdLineProcessor(argv)
req = None
force = 0
approxok = 0
ioor = 0
filename = None
# Parse command line arguments.
i = 1
while i < len(argv):
arg = argv[i]
if arg == "-req":
req = (float(argv[i + 1]), float(argv[i + 2]), int(argv[i + 3]))
i = i + 3
elif arg == "-ioor":
ioor = 1
elif arg == "-approxok":
approxok = 1
elif arg == "-force":
force = 1
elif filename is None:
filename = arg
else:
return Usage()
i = i + 1
if filename is None:
return Usage()
# -----------------------------------------------------------------------
ds = gdal.Open(filename)
if req is None:
hist = ds.GetRasterBand(1).GetDefaultHistogram(force=force)
if hist is None:
print("No default histogram.")
else:
print("Default Histogram:")
print("Min: ", hist[0])
print("Max: ", hist[1])
print("Buckets: ", hist[2])
print("Histogram: ", hist[3])
else:
hist = ds.GetRasterBand(1).GetHistogram(req[0], req[1], req[2], ioor, approxok)
if hist is not None:
print("Histogram: ", hist)
ds = None
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv))
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