keep image aspect ratio when generating thumbnails with omero rendering engine
keep image aspect ratio when generating thumbnails with omero rendering engine

lucalianas/ome_seadragon,crs4/ome_seadragon,lucalianas/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon