Hi Gabrielle,
Actually OTB does not support half precision floating point... It will
be read as a 32bits floating point.
The negative value can come from a No Data in your images, as you are
interpolating values...
As a workaround you can try to use DynamicConvert (to be sure that it is
not the conversion from 16 to 32 bits that is not done correctly), and
then use a mask to avoid taking No Data into account (for instance set a
No Data Value to -999999, with the ManageNoData app, and threshold the
result once interpolated to only keep positive values).
Hope it works, and don't hesitate if you have more questions!
Antoine
On 11/01/2019 16:30, Gabrielle Hoelzle wrote:
I have not been using command line but a script. I will attach.
On Friday, January 11, 2019 at 10:11:54 AM UTC-5, Julien Michel wrote:
Hi,
Can you post more details, such as command-lines ?
Regards,
Julien
*De :*otb-...@googlegroups.com <javascript:>
<otb-...@googlegroups.com <javascript:>> *De la part de* Gabrielle
Hoelzle
*Envoyé :* vendredi 11 janvier 2019 16:05
*À :* otb-users <otb-...@googlegroups.com <javascript:>>
*Objet :* [otb-users] introduction of negative DNs in otb
I am having an issue with both Worldview and Pleaides when I run
(at minimuim) any of these steps : superimpose, pansharpening,
orthorectification. During the process, the 16bit float raw inputs
are being upgraded 32 bit and negative values are being
introduced. I am hoping someone is aware of a workaround for this.
Or an explanation of why this is happening. Thanks
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