例子
以下程序是演示颜色调整效果的示例。在这里,我们使用在 JavaFX 场景中嵌入图像(Tutorialspoint Logo)Image 和 ImageView类。这是在位置 100 和 70 处完成的,并且适合高度和适合宽度分别为 200 和 400。
我们正在使用颜色调整效果调整此图像的颜色。和contrast, hue, brightness and saturation值为 0.4。-0.05、0.9、0.8。
将此代码保存在名称为的文件中 ColorAdjustEffectExample.java.
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.effect.ColorAdjust;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.stage.Stage;
public class ColorAdjustEffectExample extends Application {
@Override
public void start(Stage stage) {
//Creating an image
Image image = new Image("http://www.cainiaoya.com/green/images/logo.png");
//Setting the image view
ImageView imageView = new ImageView(image);
//Setting the position of the image
imageView.setX(100);
imageView.setY(70);
//setting the fit height and width of the image view
imageView.setFitHeight(200);
imageView.setFitWidth(400);
//Setting the preserve ratio of the image view
imageView.setPreserveRatio(true);
//Instantiating the ColorAdjust class
ColorAdjust colorAdjust = new ColorAdjust();
//Setting the contrast value
colorAdjust.setContrast(0.4);
//Setting the hue value
colorAdjust.setHue(-0.05);
//Setting the brightness value
colorAdjust.setBrightness(0.9);
//Setting the saturation value
colorAdjust.setSaturation(0.8);
//Applying coloradjust effect to the ImageView node
imageView.setEffect(colorAdjust);
//Creating a Group object
Group root = new Group(imageView);
//Creating a scene object
Scene scene = new Scene(root, 600, 300);
//Setting title to the Stage
stage.setTitle("Coloradjust effect example");
//Adding scene to the stage
stage.setScene(scene);
//Displaying the contents of the stage
stage.show();
}
public static void main(String args[]){
launch(args);
}
}
使用以下命令从命令提示符编译并执行保存的 java 文件。
javac ColorAdjustEffectExample.java
java ColorAdjustEffectExample