<put algortithm description here>
Input image
[raster]Segmented image
[raster]Minimum Region Size
[number]<put parameter description here>
Default: 50
Size of tiles in pixel (X-axis)
[number]<put parameter description here>
Default: 500
Size of tiles in pixel (Y-axis)
[number]<put parameter description here>
Default: 500
Output Image
[raster]processing.runalg('otb:exactlargescalemeanshiftsegmentationstep3optional', -in, -inseg, -minsize, -tilesizex, -tilesizey, -out)