对于类型main，未定义WhiteRectangleDetector方法

Question

我正在尝试将WhiteRectangleDetector（）函数与带有Java（Eclipse）的zxing库一起使用。我将core-3.3.0.jar和javase-3.3.0.jar添加为User-Library。

LuminanceSource source = new BufferedImageLuminanceSource(barCodeBufferedImage);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

Reader reader = new MultiFormatReader();
result = reader.decode(bitmap);
ResultPoint[] scannedCoord = result.getResultPoints();

System.out.println("ResultPoint 1: " + scannedCoord[0]); 
System.out.println("ResultPoint 2: " + scannedCoord[1]);

System.out.println("\n Barcode text is " + result.getText() + "\n");

System.out.println("-------------------------------------------------------------------");

BitMatrix bitMatrix = bitmap.getBlackMatrix();
System.out.println(bitMatrix.getTopLeftOnBit());
System.out.println(bitMatrix.getBottomRightOnBit());

ResultPoint[] wrpts = WhiteRectangleDetector(bitMatrix);

我收到此错误消息：类型main的方法WhiteRectangleDetector（BitMatrix）未定义！

Answer 1

WhiteRectangleDetector是一个类，而不是方法。要使用它，您需要使用new调用创建它的实例：

WhiteRectangleDetector detector = new WhiteRectangleDetector(bitMatrix);
//now you can call methods
ResultPoint[] wrpts = detector.detect();