Compare rendering of an image, http://www.bbc.co.uk/vision/productisation/images/f/accordion_content.gif, in a browser and the program below. ImageView renders a black line at the bottom.

import javafx.application.Application; 
import javafx.scene.Group; 
import javafx.scene.Scene; 
import javafx.scene.image.Image; 
import javafx.scene.image.ImageView; 
import javafx.stage.Stage; 

public class ImageTest extends Application {

    public static void main(String[] args) {
        launch(ImageTest.class, args); 
    } 

    @Override public void start(Stage stage) { 
        Image img = new Image("http://www.bbc.co.uk/vision/productisation/images/f/accordion_content.gif");
        ImageView view = new ImageView(img); 
        Scene sc = new Scene(new Group(view)); 
        stage.setScene(sc); 
        stage.sizeToScene(); 
        stage.show(); 
    } 
}