1GDAL_EDIT(1) GDAL GDAL_EDIT(1)
2
6 gdal_edit - Edit in place various information of an existing GDAL
7 dataset.
8
10 gdal_edit [--help-general] [-ro] [-a_srs srs_def]
11 [-a_ullr ulx uly lrx lry] [-a_ulurll ulx uly urx ury llx lly]
12 [-tr xres yres] [-unsetgt] [-unsetrpc] [-a_nodata value] [-unsetnodata]
13 [-unsetstats] [-stats] [-approx_stats]
14 [-setstats min max mean stddev]
15 [-scale value] [-offset value] [-units value]
16 [-colorinterp_X red|green|blue|alpha|gray|undefined]*
17 [-gcp pixel line easting northing [elevation]]*
18 [-unsetmd] [-oo NAME=VALUE]* [-mo "META-TAG=VALUE"]* datasetname
19
21 The gdal_edit.py script can be used to edit in place various informa‐
22 tion of an existing GDAL dataset (projection, geotransform, nodata,
23 metadata).
24 It works only with raster formats that support update access to exist‐
26 ing datasets.
27 CAUTION:
29 Depending on the format, older values of the updated information
30 might still be found in the file in a "ghost" state, even if no
31 longer accessible through the GDAL API. This is for example the case
32 of the raster.gtiff format (this is not a exhaustive list).
33 --help-general
35 Gives a brief usage message for the generic GDAL commandline op‐
36 tions and exit.
37 -ro Open the dataset in read-only. Might be useful for drivers re‐
39 fusing to use the dataset in update-mode. In which case, updated
40 information will go into PAM .aux.xml files.
41 -a_srs <srs_def>
43 Defines the target coordinate system. This coordinate system
44 will be written to the dataset. If the empty string or None is
45 specified, then the existing coordinate system will be removed
46 (for TIFF/GeoTIFF, might not be well supported besides that).
47 -a_ullr ulx uly lrx lry:
49 Assign/override the georeferenced bounds of the dataset.
50 -a_ulurll ulx uly urx ury llx lly:
52 Assign/override the georeferenced bounds of the dataset from
53 three points: upper-left, upper-right and lower-left. Unlike
54 -a_ullr, this also supports rotated datasets (edges not parallel
55 to coordinate system axes).
56 New in version 3.1.
58 -tr <xres> <yres>
61 Set target resolution. The values must be expressed in georefer‐
62 enced units. Both must be positive values.
63 -unsetgt
65 Remove the georeference information.
66 -unsetrpc
68 Remove RPC information.
69 New in version 2.4.
71 -unsetstats
74 Remove band statistics information.
75 New in version 2.0.
77 -stats Calculate and store band statistics.
80 New in version 2.0.
82 -setstats min max mean stddev
85 Store user-defined values for band statistics (minimum, maximum,
86 mean and standard deviation). If any of the values is set to
87 None, the real statistics are calclulated from the file and the
88 ones set to None are used from the real statistics.
89 New in version 2.4.
91 -approx_stats
94 Calculate and store approximate band statistics.
95 New in version 2.0.
97 -a_nodata <value>
100 Assign a specified nodata value to output bands.
101 -unsetnodata
103 Remove existing nodata values.
104 New in version 2.1.
106 -scale <value>
109 Assign a specified scale value to output bands. If a single
110 scale value is provided it will be set for all bands. Alterna‐
111 tively one scale value per band can be provided, in which case
112 the number of scale values must match the number of bands. If
113 no scale is needed, it it recommended to set the value to 1.
114 Scale and Offset are generally used together. For example, scale
115 and offset might be used to store elevations in a unsigned 16bit
116 integer file with a precision of 0.1, and starting from -100.
117 True values would be calculated as: true_value = (pixel_value *
118 scale) + offset
119 NOTE:
121 These values can be applied using -unscale during a
122 gdal_translate run.
123 New in version 2.2.
125 -offset <value>
128 Assign a specified offset value to output bands. If a single
129 offset value is provided it will be set for all bands. Alterna‐
130 tively one offset value per band can be provided, in which case
131 the number of offset values must match the number of bands. If
132 no offset is needed, it recommended to set the value to 0. For
133 more see scale.
134 New in version 2.2.
136 -units <value>
139 Assign a unit to output band(s).
140 New in version 3.1.
142 -colorinterp_X red|green|blue|alpha|gray|undefined
145 Change the color interpretation of band X (where X is a valid
146 band number, starting at 1).
147 New in version 2.3.
149 -gcp pixel line easting northing [elevation]
152 Add the indicated ground control point to the dataset. This op‐
153 tion may be provided multiple times to provide a set of GCPs.
154 -unsetmd
156 Remove existing metadata (in the default metadata domain). Can
157 be combined with -mo.
158 New in version 2.0.
160 -mo META-TAG=VALUE
163 Passes a metadata key and value to set on the output dataset if
164 possible. This metadata is added to the existing metadata
165 items, unless -unsetmd is also specified.
166 -oo NAME=VALUE
168 Open option (format specific).
169 New in version 2.0.
171 The -a_ullr, -a_ulurll, -tr and -unsetgt options are exclusive.
174 The -unsetstats and either -stats or -approx_stats options are exclu‐
176 sive.
177
179 gdal_edit -mo DATUM=WGS84 -mo PROJ=GEODETIC -a_ullr 7 47 8 46 test.ecw
180 gdal_edit -scale 1e3 1e4 -offset 0 10 twoBand.tif
182
184 Even Rouault <even.rouault@spatialys.com>
185
187 1998-2021
188 Sep 07, 2021 GDAL_EDIT(1)