Java android将图片中的黑色更改为tracspadence并保存到文件中

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class ImageProcessing {
    public static void main(String[] args) {
        String imagePath = "path/to/image.jpg";
        String outputPath = "path/to/output.jpg";

        // 加载图片
        Bitmap bitmap = BitmapFactory.decodeFile(imagePath);

        // 获取图片的宽度和高度
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();

        // 遍历像素
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                // 获取像素的颜色值
                int pixel = bitmap.getPixel(x, y);

                // 判断颜色是否为黑色
                if (Color.red(pixel) == 0 && Color.green(pixel) == 0 && Color.blue(pixel) == 0) {
                    // 更改颜色为透明
                    int transparentPixel = Color.argb(0, 0, 0, 0);
                    bitmap.setPixel(x, y, transparentPixel);
                }
            }
        }

        // 保存图片到文件
        File outputFile = new File(outputPath);
        try {
            FileOutputStream outputStream = new FileOutputStream(outputFile);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
            outputStream.flush();
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}