1 | #!/usr/bin/env python |
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2 | #****************************************************************************** |
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3 | # $Id: gdalchksum.py 18194 2009-12-06 20:07:45Z rouault $ |
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4 | # |
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5 | # Project: GDAL |
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6 | # Purpose: Application to checksum a GDAL image file. |
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7 | # Author: Frank Warmerdam, warmerdam@pobox.com |
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8 | # |
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9 | #****************************************************************************** |
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10 | # Copyright (c) 2003, Frank Warmerdam <warmerdam@pobox.com> |
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11 | # |
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12 | # Permission is hereby granted, free of charge, to any person obtaining a |
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13 | # copy of this software and associated documentation files (the "Software"), |
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14 | # to deal in the Software without restriction, including without limitation |
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15 | # the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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16 | # and/or sell copies of the Software, and to permit persons to whom the |
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17 | # Software is furnished to do so, subject to the following conditions: |
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18 | # |
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19 | # The above copyright notice and this permission notice shall be included |
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20 | # in all copies or substantial portions of the Software. |
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21 | # |
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22 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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23 | # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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24 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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25 | # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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26 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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27 | # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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28 | # DEALINGS IN THE SOFTWARE. |
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29 | #****************************************************************************** |
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30 | |
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31 | try: |
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32 | from osgeo import gdal |
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33 | except ImportError: |
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34 | import gdal |
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35 | |
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36 | import sys |
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37 | |
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38 | def Usage(): |
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39 | print('Usage: gdalchksum.py [-b band] [-srcwin xoff yoff xsize ysize] file') |
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40 | sys.exit(1) |
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41 | |
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42 | # ============================================================================= |
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43 | # Mainline |
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44 | # ============================================================================= |
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45 | |
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46 | srcwin = None |
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47 | bands = [] |
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48 | |
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49 | filename = None |
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50 | |
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51 | gdal.AllRegister() |
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52 | argv = gdal.GeneralCmdLineProcessor( sys.argv ) |
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53 | if argv is None: |
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54 | sys.exit( 0 ) |
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55 | |
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56 | # Parse command line arguments. |
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57 | i = 1 |
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58 | while i < len(argv): |
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59 | arg = argv[i] |
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60 | |
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61 | if arg == '-b': |
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62 | i = i + 1 |
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63 | bands.append( int(argv[i]) ) |
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64 | |
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65 | elif arg == '-srcwin': |
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66 | srcwin = [int(argv[i+1]),int(argv[i+2]), |
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67 | int(argv[i+3]),int(argv[i+3]) ] |
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68 | i = i + 4 |
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69 | |
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70 | elif filename is None: |
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71 | filename = argv[i] |
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72 | |
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73 | else: |
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74 | Usage() |
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75 | |
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76 | i = i + 1 |
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77 | |
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78 | if filename is None: |
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79 | Usage() |
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80 | |
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81 | # Open source file |
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82 | |
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83 | ds = gdal.Open( filename ) |
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84 | if ds is None: |
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85 | print('Unable to open ', filename) |
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86 | sys.exit(1) |
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87 | |
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88 | # Default values |
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89 | |
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90 | if srcwin is None: |
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91 | srcwin = [ 0, 0, ds.RasterXSize, ds.RasterYSize ] |
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92 | |
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93 | if len(bands) == 0: |
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94 | bands = list(range(1,(ds.RasterCount+1))) |
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95 | |
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96 | |
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97 | # Generate checksums |
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98 | |
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99 | for band_num in bands: |
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100 | oBand = ds.GetRasterBand( band_num ) |
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101 | result = oBand.Checksum( srcwin[0], srcwin[1], srcwin[2], srcwin[3] ) |
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102 | print(result) |
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103 | |
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104 | ds = None |
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105 | |
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106 | |
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107 | |
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108 | |
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109 | |
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110 | |
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111 | |
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112 | |
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