thanks Hanlie.
cleo
On Fri, Aug 22, 2014 at 9:01 PM, Hanlie Pretorius <
hanlie.pretor...@gmail.com> wrote:
> Hi Cleo,
>
> I used
>
> -scale 0 4095 0 255
>
> The reason for the 4095 is that the images actually use only the first
> 12 bits of the 16 bits (according to the documentation) and 2^12
Hi Cleo,
I used
-scale 0 4095 0 255
The reason for the 4095 is that the images actually use only the first
12 bits of the 16 bits (according to the documentation) and 2^12 =
4096.
If it was a true 16 bit image I would use 65535 for the 'max from' value.
Regards
Hanlie
2014-08-22 13:56 MGT+0
hi Hanlie,
can you tell me what value you put for -scale to convert into 8 bit?
cleo
On Fri, Aug 22, 2014 at 7:02 PM, Hanlie Pretorius <
hanlie.pretor...@gmail.com> wrote:
> Hi Even,
>
> Yes, I quoted the exact message, but it displays in the QGIS interface.
>
> I tried gdal_translate with the
Hi Even,
Yes, I quoted the exact message, but it displays in the QGIS interface.
I tried gdal_translate with the -ot and -scale parameters on the
multispectral image and that worked much better, thanks.
Regards
Hanlie
2014-08-21 20:33 MGT+02:00, Even Rouault :
> Le jeudi 21 août 2014 08:57:32,
Le jeudi 21 août 2014 08:57:32, Hanlie Pretorius a écrit :
> Hi,
>
> I'm working with a 16 bit SPOT 6 image that I want to convert from 16
> bit pixel depth to 8 bit pixel depth. I say 16 bit, but if I load the
> file into Envi, it reports that uses only 12 bits. However gdalinfo
> reports 16 bit
Hi,
I'm working with a 16 bit SPOT 6 image that I want to convert from 16
bit pixel depth to 8 bit pixel depth. I say 16 bit, but if I load the
file into Envi, it reports that uses only 12 bits. However gdalinfo
reports 16 bit (see below).
I've manage to do so on the multispectral image, but the
