我正在使用机器人捕获屏幕截图。为了避免不必要的I / O,将BufferedImage写入磁盘,然后将其重新加载到Mat中,我尝试使用以下代码将BufferedImage直接加载到Mat中。
0
我收到此错误:
public static Mat screenShot() throws AWTException, IOException {
Robot r = new Robot();
Rectangle capture = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
BufferedImage Image = r.createScreenCapture(capture);
Mat mat = new Mat(Image.getHeight(), Image.getWidth(), CvType.CV_8UC1);
byte[] data = ((DataBufferByte) Image.getRaster().getDataBuffer()).getData();
mat.put(0, 0, data);
return mat;
}
我该如何解决这个问题?
答案 0 :(得分:0)
我在this线程上找到了一种解决方法,紫外线的响应解决了该问题。
工作代码:
public static Mat screenShot() throws AWTException, IOException {
Robot r = new Robot();
Rectangle capture = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
BufferedImage Image = r.createScreenCapture(capture);
Mat mat = BufferedImage2Mat(Image);
return mat;
}
public static Mat BufferedImage2Mat(BufferedImage image) throws IOException {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
ImageIO.write(image, "jpg", byteArrayOutputStream);
byteArrayOutputStream.flush();
return Imgcodecs.imdecode(new MatOfByte(byteArrayOutputStream.toByteArray()), Imgcodecs.CV_LOAD_IMAGE_UNCHANGED);
}