java JavaFX | SepiaTone 类

JavaFX | SepiaTone 类

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

SepiaTone 类是 JavaFX 的一部分。棕褐色类用于为图像添加棕褐色色调效果，类似于古董照片。在应用棕褐色效果时，图像上会出现红棕色调。

类的构造函数:

Sepitone():创建 Sepitone 类的新对象。
Sepitone(双 l) :创建一个具有指定级别的新 Sepitone 对象。

常用方法:

方法	说明
getInput()	返回属性输入的值。
设置输入(效果五)	设置属性输入的值。
setLevel(双 v)	设置棕褐色调对象的级别值。
getLevel()	返回棕褐色调对象的级别值。

下面的程序说明了 SepiaTone 类的使用:

Java program to import an image and add SepiaTone 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 file input stream. From the image a 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 SepiaTone 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 SepiaTone 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 sepia_tone_1 extends Application {

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

// set title for the stage         stage.setTitle("SepiaTone 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 sepia_tone effect         SepiaTone sepia_tone = new SepiaTone(0.5);

// set effect         imageview.setEffect(sepia_tone);

// 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 set SepiaTone effect to it. The Level of the SepiaTone effect can be controlled using the button: 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 SepiaTone effect is created with a specified level passed as parameters and the effect is set to the image view using setEffect() function. A Button named button is created which is used to increase the SepiaTone of the image. The button is also added to the VBox. The SepiaTone of the image is increased using the setLevel() function.The events related to button is handled using EventHandler.

```java // Java program to import an image and set // SepiaTone effect to it. The Level of the // SepiaTone effect can be controlled // using the button 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 sepia_tone_2 extends Application {

double level = 0.1;

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

// set title for the stage         stage.setTitle("SepiaTone 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 sepia_tone effect         SepiaTone sepia_tone = new SepiaTone(level);

// create a button         Button button = new Button("increase");

// action event         EventHandler event = new EventHandler() {             public void handle(ActionEvent e)             {

// increase the level                 level += 0.1;                 if (level > 1)                     level = 0.0;

// set Level for sepia_tone                 sepia_tone.setLevel(level);             }         };

// set on action of button         button.setOnAction(event);

// set effect         imageview.setEffect(sepia_tone);

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

// create a scene         Scene scene = new Scene(vbox, 300, 300);

// 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:

https://media.geeksforgeeks.org/wp-content/uploads/Sepia_2.mp4