param.setSourceSubsampling(samplingWidth <= 0 ? 1 : samplingWidth, samplingHeight <= 0 ? 1 : samplingHeight, 0, 0);
                param.setSourceRegion(new Rectangle(width, height > width ? width : height));
                final BufferedImage image = reader.read(0, param);
                final int thumbnailWidth = fessConfig.getThumbnailHtmlImageThumbnailWidthAsInteger();