check whether this iioimage stores its image data as a raster or as a renderedimage . concode_field_sep RenderedImage image concode_elem_sep IIOMetadata metadata concode_elem_sep Raster raster concode_elem_sep List<? extends BufferedImage> thumbnails concode_field_sep List<? extends BufferedImage> getThumbnails concode_elem_sep void setMetadata concode_elem_sep IIOMetadata getMetadata concode_elem_sep void setRenderedImage concode_elem_sep void setThumbnails concode_elem_sep RenderedImage getRenderedImage concode_elem_sep int getNumThumbnails concode_elem_sep BufferedImage getThumbnail concode_elem_sep void setRaster concode_elem_sep Raster getRaster
boolean function ( ) { return raster != null ; }