(int) (mapFiltered.getWidth() * compareZoomFactor),
(int) (mapFiltered.getHeight() * compareZoomFactor),
BufferedImage.TYPE_INT_ARGB);
g = (Graphics2D) filteredShowImage.getGraphics();
mapFiltered.drawBackground(g);
mapFiltered.drawFilter(g, true);
filter.draw(g, compareZoomFactor, true);
g.dispose();
assertTrue("Images filter should not be same",
!compareImage(filteredShowHideImage, filteredShowImage));
} catch (IOException e) {