Image Analysis Window - is there an equivalent function for Focal Statistics 'Minimum'?

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06-03-2019 12:20 AM
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Occasional Contributor II

Hello everyone, a quick question regarding the functions available within the ArcMap Image Analysis window (10.5.1 for reference).

Is there a function that will replicate what I could achieve using the Focal Statistics tool with 'Minimum'? Effectively I would like to sample across a singleband image in a 11 x 11 neighbourhood and select the minimum value. 

I've had a look at the 'Convolution' function and this is sort of what I'm looking for, but not quite. 

Any suggestions would be appreciated.

Thanks

Anthony

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Esri Contributor

Hi Anthony,

assume you use ArcMap?
Have you had a look at:
https://pro.arcgis.com/en/pro-app/help/data/imagery/focal-statistics-function.htm

https://desktop.arcgis.com/en/arcmap/latest/manage-data/raster-and-images/statistics-function.htm

(sorry, cant check, dont have Map installed anymore)

In ArcGIS Pro the answer would be really straight forward: As a raster function in Pro (Spatial Analyst required)

https://pro.arcgis.com/en/pro-app/help/data/imagery/focal-statistics-function.htm

Regards
Guenter

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Occasional Contributor II

Hi Guenter Doerffel‌ and thanks for the quick response.

I came across exactly that function in Pro over the weekend when I was looking at options for what I needed. Unfortunately the user base I am designing this process for are all still on ArcMap 10.5.1 so I’m a little hamstrung.

If I can’t find anything off the shelf, I may have to look at a small custom Python function to do what I need.

Thanks

Anthony

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