I'm really excited about the RasterConvolver transformer in the 2018.1 beta. However it applies the convolution filter to all bands. It would be nice if this transformer supports band selection and only applies the convolution filter to the selected bands.
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+44- Safer
I think the transformer does support band selection. Use the RasterSelector transformer before it to do that. I tried it and it worked fine for me. Let us know if it doesn't work for you.
+28- Contributor
It does in the latest beta, so that's great. The documentation should be updated though, since it says "after applying a convolution filter to all the bands." and doesn't contain the standard "Usage Notes
This transformer supports raster band and palette selection. The RasterSelector can be used to modify selection." that other transformers that support band selection do.
+44- Safer
We're just about to start overhauling all of the raster transformer documentation, so I'll make sure that info goes into there.
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