Ik wil graag werken met individuele banden van de Sentinel 2 beelden, maar het lijkt erop dat ik niet met meer dan drie banden tegelijk kan werken in ArcGIS Pro 2.2.1 of ArcMap 10.3.1.<\/P>
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Het laden van de Sentinel-2 Views vanuit de ArcGIS Pro Catalogus (via AGOL), direct vanaf de WMS\/ArcGIS Rest Services (1<\/A>, 2<\/A>) levert dezelfde 3 zichtbare banden op. Ik kan echter wel verwerkingssjablonen toepassen die bij de restservice horen, zoals opgenomen in de bijgevoegde afbeelding. <\/P><\/P>Is er een manier om alle 13 banden te gebruiken via een WMS die geen abonnement vereist, of door handmatig open source datasets van AWS te extraheren en in de gaten te houden? Idealiter zou ik de banden beschikbaar willen hebben voor aangepaste rasterfunctie-sjablonen in ArcGIS Pro, zodat ik iets geavanceerdere dingen kan doen zoals het detecteren van veranderingen aan de stadsrand in real-time. <\/P><\/P>Urban Index is bijvoorbeeld beschikbaar hier<\/A>. En veranderingendetectie wordt besproken hier<\/A>, en zou kunnen worden toegepast als een rasterfunctie-sjabloon voor real-time weergave - als we maar elk van de 13 banden via de WMS konden zien. <\/P><\/P><\/P><\/P><\/P><\/BODY><\/HTML>
Is er een manier om alle 13 banden te gebruiken via een WMS die geen abonnement vereist, of door handmatig open source datasets van AWS te extraheren en in de gaten te houden? Idealiter zou ik de banden beschikbaar willen hebben voor aangepaste rasterfunctie-sjablonen in ArcGIS Pro, zodat ik iets geavanceerdere dingen kan doen zoals het detecteren van veranderingen aan de stadsrand in real-time. <\/P>
Urban Index is bijvoorbeeld beschikbaar
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Load the service into the map
Go to table of contents, right click --> properties --> processing templates --> none
select layer in table of contents, go to Image Service Layer on toolbar and select Symbology
... and you can assign any band to the R and G and B displays
Note the Processing Templates provide faster access to the most common band combinations and indices (see 2nd screenshot above)
Simon,
set the processing templates as NONE, you will have access to all the 13 bands, Then you can apply your raster function templates to use any of the 13 bands
Thanks Abhijit.
I did try that and it wasn't obvious that any more bands had become available.
I'll give it another try soon.
Is there any particular function where it should be obvious that all three bands are being delivered? Certainly the legend and raster info items still indicated three bands only.
Simon
Get Outlook for iOS<https://aka.ms/o0ukef>
*thirteen bands being delivered
Anyone have success with custom functions like this Regolith Ratio;
(B11 / B12) + (B8 / B12) + (B8 / B3)
Laurent, what is your issue here? Not the results you expect? Without checking the literature:Does (B11 / B12) + (B8 / B12) + (B8 / B3) refer to the band naming/order in the Sentinel doc? Or is it (which would be crutial!)the band order in the dataset when in ArcGIS?Please keep in mind that there is a Band 8A in sentinel - and counting this is band 9 - so all following are one number up!So as a simple example: If you would need a formula like "NarrowNIR" / "Cirrus" in the sense of Sentinel doc this would be "8A" / "10" , but in the sense of band order in ArcGIS this would be "B9" / "B11" !!If that "error" happend on your formula above, the real formula most likely should be (B12 / B13) + (B8 / B13) + (B8 / B3) RegardsGuenter
Thank you Guenter. I'll take another look at my formula, but I think the issue is with the mix of band resolution that the Sentinel imagery is generated from. I beleive that there is a mix from 10m, 20m & 60m. So with my formulae I don't get the result I'm after. I'm comparing this to a standalone image that was created from resampled bands and then the formulae applied.
Look I'm not an expert by any means when it comes to Remote Sensing data, so I may be approaching this all wrong.
Laurent,
ArcGIS has settings to take care of this resolution issue: As a property of many band related functions you can specify your choice for the output cellsize type using the selector:
This is part of all math functions, too. If you have simplified the process and use the "user defined" Method of the Band Arithmetic function (which your question indicates), your mix of band-resolutions will be resolved as the "best available". I tested the line that I have suggested with Sentinel2 in "Band Arithmetic" and it works just fine:RGB (4/3/2)
BandArithmetic Function: (B12 / B13) + (B8 / B13) + (B8 / B3)
Sorry - some city-patch - not ideal for regiolith
G.
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