Hello,
Thank you very much for this information. I have downloaded the image
mosaicking remote module from Remi Cresson and sent him an email to ask
him how to use it inside Monteverdi 3.0.1.
Best regards,
Abdelghani Souirji
Le 18/04/2016 10:27, Julien Michel a écrit :
Hi Ghanisen,
The TileFusion application (and former monteverdi 1.x module) is not
meant for general mosaicing based on image geolocation : it only
allows to stitch back together tiles that are exactly adjacent. A good
example of this kind of data is when a ground segment cuts images into
parts which weight less than 2 Gb each (to accomodate for poor
filesystems limitations).
If you want a tool for general mosaicing (which includes resampling
images to a common spatial reference system, and compute seamlines),
you may want to have a look at :
- The image mosaiking remote module from Remi Cresson :
https://github.com/remicres/otb-mosaic
- gdalwarp which has mosaicing capabilities.
Regards,
Julien
Le 18/04/2016 10:14, ghanisen.g a écrit :
Hi Arthur, hi Guillaume,
Thanks for the explanations. The problem is that when you mosaic
images there is generally an overlap hence the number of rows and
columns of the mosaic is different (less) than the sum of the rows
and columns of the mosaicked images. Also, the mosaicing window
allows to enter only 1 time the number or rows and columns, therefore
these are those of the mosaic.
The question is how determine the 'future' number of rows and columns
of the mosaic. There are also possibilities to do this through
formulas but the explanations given in the help provided in the
mosaicing window are not clear.
Do you have any information on how to determine before hand the
mosaic's number of rows and columns through these formulas or otherwise?
Kind regards.
Le lundi 18 avril 2016 09:52:44 UTC+2, Guillaume Pasero a écrit :
Hi,
Arthur is right. The number of tile columns and tile rows
corresponds to the layout of the tiles you want to fuse.
Let say you give 6 input tiles, you should use the rows & columns
parameters to specify if the tile array is 2 columns by 3 rows ,
or 3 columns by 2 rows.
Regards,
Guillaume
On 04/18/2016 09:42 AM, arthurd wrote:
Hi,
I don't use Monteverdi but I guess it's very similar to the
command otbcli_TileFusion, where Nb of tile columns/rows refer
to the way your images were delivered. For Pleiades for example,
each tile has a suffix R1C1, R1C2, etc. This means Row 1 Column
1, Row 1 Column 2. The parameters you need are the total Nb of
columns/rows.
Le vendredi 15 avril 2016 12:25:27 UTC+2, ghanisen.g a écrit :
Hello,
I have great difficulties using the *Image tile fusion
*module in OTB-Monteverdi because very little information on
fusion parameters is given in the documentation tab of the
Image fusion window and in the user manual of Monteverdi.
My main problem is about the *Number of tile columns* and
*Number of tile rows*. It is not clear what these parameters
correspond to and how to find them.
Does anybody have any detailed information about this?
Any help shall be greatly appreciated.
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