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SriRam Prasad Bhasker wrote:
<blockquote
cite="midOFCCD729DF.6423A63B-ON65257266.002B72A7-65257266.002B901D@rmsi.com"
type="cite">
<pre wrap="">hi.
has anyone got some source code to print the RGB values from an RGB Image.
I have an RGB Image (3 Band Image)
i need to programaticlaly create a new Image (swapping the Values of RGB
as BGR)
any help is welcome
cheers
s.p.bhasker
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</blockquote>
<br>
<br>
I would do this by<br>
<br>
breaking up the image into three bands A, B and C.<br>
creating a new image with the bands C, B and A<br>
(add projection and georeferencing if needed)<br>
<br>
To get the bands I would use dataset.GetRasterBand( 1 | 2 | 3 )<br>
<br>
To create the new image I would write these bands to disk<br>
as temporary files and use vrtutils from OpenEV to<br>
create a virtual three band image and open this as<br>
a gdal dataset.<br>
<br>
I suspect<br>
<br>
-you do not want to import the whole of OpenEV<br>
to do this (on the other hand, if OpenEV is<br>
available (e.g. you are working in python and<br>
import vrtutils works), this may be of some use).<br>
<br>
-I am doing things the hard way (even taking into<br>
account that I already have OpenEV available)<br>
<br>
I don't have any code that does exactly what you<br>
want. but the functions I use are<br>
vrtutils.VRTDatasetConstructor<br>
.AddSimpleBand<br>
<br>
- William Hughes<br>
<br>
<br>
<br>
<br>
<br>
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<br>
<br>
<br>
<br>
<blockquote
cite="midOFCCD729DF.6423A63B-ON65257266.002B72A7-65257266.002B901D@rmsi.com"
type="cite">
<pre wrap=""></pre>
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