JavaFX显示ImageView中像素的RGB值

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.image.PixelReader;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class ImageViewRGB extends Application {

    @Override
    public void start(Stage primaryStage) {
        // 加载图像
        Image image = new Image("image.jpg");

        // 创建ImageView并设置图像
        ImageView imageView = new ImageView(image);

        // 获取图像的PixelReader
        PixelReader pixelReader = image.getPixelReader();

        // 获取图像的宽度和高度
        int width = (int) image.getWidth();
        int height = (int) image.getHeight();

        // 遍历图像的每个像素
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                // 获取像素的RGB值
                int argb = pixelReader.getArgb(x, y);

                // 分离RGB值的各个分量
                int red = (argb >> 16) & 0xFF;
                int green = (argb >> 8) & 0xFF;
                int blue = argb & 0xFF;

                // 打印RGB值
                System.out.println("Pixel at (" + x + ", " + y + "): R=" + red + ", G=" + green + ", B=" + blue);
            }
        }

        // 创建场景并显示
        StackPane root = new StackPane(imageView);
        Scene scene = new Scene(root);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}