Changes between Version 3 and Version 4 of UserDocs/GdalMerge

Timestamp:

Feb 20, 2008, 1:06:24 PM (16 years ago)

Author:

maphew

Comment:

How to merge 3 greyscale to a single RGB image

UserDocs/GdalMerge

@@ -1 +1 @@
 = The `gdal_merge` utility =
   ''A python script to mosaic a set of images''
-
   ''The official documentation for gdal_merge is at http://www.gdal.org/gdal_merge.html.''
-
 
 gdal_merge.py uses nearest neighbour resampling.  If you want control over the resampling used, you should use gdalwarp instead. 
 
-== {Win} Are there other ways of getting a list of images into gdal_merge without putting them all on the command line? ==
+== Are there other ways of getting a list of images into gdal_merge without putting them all on the command line? ==
 
 Method 1, use `--optfile`
@@ -15 +13 @@
 }}}
 
-Method 2, use a batch file wrapper, see attached.
+Method 2, use a batch file wrapper, see attached. (for windows)
 
+== Create an RGB image by merging 3 different greyscale bands ==
 
+Conduct "merging by stacking" with the -separate flag.  So if you had three greyscale files that cover the same area and you do:
+{{{
+gdal_merge.py -separate 1.tif 2.tif 3.tif -o rgb.tif
+}}}
+
+This maps 1.tif to red, 2.tif to green and 3.tif to blue.