Eliminate isolated pixels in Google Earth Engine classified image

Question

Is there a way to eliminate isolated pixels just like we can do with the classification sieve of the QGIS SCP plugin?

I've done a classification of an image that contains many isolated pixels which I want to remove.

Answer 1

Just use a focal operator or reduceNeighborhood with a mode reducer.

image.focalMode(3)

or

image.reduceNeighborhood(ee.Reducer.mode(), ee.Kernel.circle(1))