Subset
SNAP_Subset
Subset image
Raster
ParameterRaster|sourceProduct|The product which will be subseted|False
ParameterExtent|geoRegion|Spatial extent||True
ParameterNumber|subSamplingX|The pixel sub-sampling step in X (horizontal image direction)|1|None|1
ParameterNumber|subSamplingY|The pixel sub-sampling step in Y (horizontal image direction)|1|None|1
ParameterBands|sourceBands|The comma-separated list of names of bands to be copied. If not given, all bands are copied.||sourceProduct|True
ParameterBoolean|copyMetadata|Copy metadata|False
OutputRaster|-out|Output Image

NOTE:
The geoRegionExtent parameter is there to allow the geoRegion to be either typed in or selected from extent on canvas. 
