Sen2 cannot mosaic

Optical Toolbox
1

Hi all,
I still have new problems when I try to mosaic two images of sentinel2 as follows. Would anyone please tell me what I should do next ?

8_{`P)O8J_35@]N8UQ4C4%T.png745Ă—128 9.66 KB

2

Hi,

the mosaicking operator does not support multisize product. Before mosaicking you should resample the Sentinel2 product (in Raster->Geometric Operations->Resampling).

1 Like
3

Hello,
Should I do mosaicking first, then Atmospheric correction ?Or I should do Atmospheric correction first , then mosaicking? Would you please tell me ?

4

Dear Pan Yuanyuan,

Please be informed that the Atmospheric Correction should be applied before the mosaic, because Sen2Cor is based on S2 data and you will not have the possibility to run Sen2Cor using the output of the mosaic because the format is different from the original S2 SAFE (GeoTIFF, DIMAP, …).

Best regards,
Fabrizio

5

ok, I got it .thanks a lot.

6

Hello,

I do not know how to set up the parameters as follows, Could you please tell?

73N9%OY7KPI`1ITCAB`HQEN.png675Ă—527 21.7 KB

7

Hi,
When I went to process,it seemed there was something wrong with the sencond image. Only one method can be choosen.
And it cannot perform the resampling. Can you tell me what has happened?

}161PT9HB]H_(`IL)GIUN]1.png679Ă—737 33 KB

8

Here is the folder. Can you see something wrong?

PLNB~]QC[[XQJXIZ_NT)56Q.png1289Ă—213 14.6 KB

9

Hi,

it is possible to get some information about the parameters in Help -> Help Context. If you search “Resampling” or “Resample Operator”, you will find some pages that will help you.

About the error, to be able to analyse what was wrong, I would need to know what product are you trying to resample and the details of the exception (Show details, in the Exception window) or the content of the log file.

10

Hi,
I have read the guide in the “Resample Operator”.But I have not gotten the answer. I feel it is an introduce or descripsion of resample parameters. As for the specific how to set up , I’m not clear yet. Could you give me some advice?

11

Hi,
I have read the guide in the “Resample Operator”.But I have not gotten the answer. I feel it is an introduce or descripsion of resample parameters. As for the specific how to set up , I’m not clear yet. Could you give me some advice?

86WZL]C6[2JV(F6GHG]~DO8.png1616Ă—349 16.9 KB

12

And when I tried to mosaic, there was something wrong as following. What happened? Is there something wrong with resample?

13

When I finished the resample and tried to opened it , and there is nothing in it.

4T2Q)ZIW(7LC)]1VX`5AA[4.png904Ă—587 11.7 KB

14

And it can be opened ,but still can not mosaicing, I’m very puzzled about it.What can I do next?


15

And here is the log report.

NP$@9IXZUR1H)(M[GQW]A8Q.png859Ă—702 59.2 KB

16

Hi,

With regard to your issue, please follow the steps listed below,

  1. S2 data resampling: Raster --> Geometric Operations --> Resampling
  2. Save the resampled S2 data
  3. Open the Mosaicing module: Raster --> Geometric Operations --> Mosaicing
  4. Set up the mosaic parameters
    4.1) I/O Parametrs: you should upload the resampled S2 data that you intend to masaic and the output name, format and directory
    4.2) Map Projection Definition: You should define the CRS, mosaic area and pixel resolution
    4.3) Variables & Conditions: you should define at least the variables (e.g. bands) that you intend to have in the output product
  5. Run the Mosaicing

Regards,
Fabrizio