java JavaFx | gaussianbull 类

JavaFx | gaussianbull 类

原文:https://www.geeksforgeeks.org/javafx-gaussianblur-class/

GaussianBlur 是 JavaFX 的一部分。高斯卷积是使用高斯卷积核的模糊效果的实现，具有可配置的半径。

类的构造函数:

gaussianbull():创建 gaussianbull 的新对象。
高斯光束(双 r) :以指定的半径创建高斯光束的新对象。

常用方法:

方法	说明
跟踪半径()	返回属性半径的值。
getInput()	返回属性输入的值。
setInput（Effect val）	设置属性输入的值。
setRadius(双精度值)	设置属性半径的值。

下面的程序举例说明了 GaussianBlur 类的使用:

Java program to import an image and add GaussianBlur effect to it: In this program a FileInputStream is created and an image is taken as input from a file. Image named image is created using the input from the file input stream. From the image, an image view object is created and it is added to the VBox. The VBox is then added to the scene and the scene is added to the stage. A GaussianBlur effect is created with a specified level passed as parameters and the effect is set to the image view using setEffect() function.

```java // Java program to import an image // and add Gaussian Blur effect to it import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.scene.image.; import javafx.scene.effect.; import java.io.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group;

public class gaussian_blur_1 extends Application {

// launch the application     public void start(Stage stage) throws Exception     {

// set title for the stage         stage.setTitle("GussianBlur Example");

// create a input stream         FileInputStream input = new FileInputStream("D:\GFG.png");

// create a image         Image image = new Image(input);

// create a image View         ImageView imageview = new ImageView(image);

// create a gaussian blur effect         GaussianBlur gaussian_blur = new GaussianBlur();

// set effect         imageview.setEffect(gaussian_blur);

// create a VBox         VBox vbox = new VBox(imageview);

// create a scene         Scene scene = new Scene(vbox, 200, 200);

// set the scene         stage.setScene(scene);

stage.show();     }

// Main Method     public static void main(String args[])     {

// launch the application         launch(args);     } } ```

输入图像:

输出:
Java program to import an image and add GaussianBlur effect to it with a specified radius: In this program a FileInputStream is created and an image is taken as input from a file. Image named image is created using the input from file input stream. From the image, an image view object is created and it is added to the VBox. The VBox is then added to the scene and the scene is added to the stage. A GaussianBlur effect is created with a specified level passed as parameters and the effect is set to the image view using setEffect() function. The radius of the GaussianBlur is specified using the setRadius() function.

```java // Java program to import an image and // add Gaussian Blur effect to it with // a specified radius import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.scene.image.; import javafx.scene.effect.; import java.io.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group;

public class gaussian_blur_2 extends Application {

// launch the application     public void start(Stage stage) throws Exception     {

// set title for the stage         stage.setTitle("GaussianBlur Example");

// create a input stream         FileInputStream input = new FileInputStream("D:\GFG.png");

// create a image         Image image = new Image(input);

// create a image View         ImageView imageview = new ImageView(image);

// create a gaussian blur effect         GaussianBlur gaussian_blur = new GaussianBlur();

// set radius for gaussian blur         gaussian_blur.setRadius(20.0f);

// set effect         imageview.setEffect(gaussian_blur);

// create a VBox         VBox vbox = new VBox(imageview);

// create a scene         Scene scene = new Scene(vbox, 200, 200);

// set the scene         stage.setScene(scene);

stage.show();     }

// Main Method     public static void main(String args[])     {

// launch the application         launch(args);     } } ```

输入图像:

输出: