DecodeMultiple 方法最多只能识别 6个 条形码？

代码：如下

//1设置读取条形码的规格
DecodingOptions decoding = new DecodingOptions();
decoding.PossibleFormats = new List<BarcodeFormat>()
{
//BarcodeFormat.EAN_13
BarcodeFormat.All_1D
};//指定读取的格式

        //2.进行读取操作
        BarcodeReader br = new BarcodeReader();
        br.Options = decoding;//指定规格
        //Result result = br.Decode(pictureBox1.Image as Bitmap);//进行读取条形码数字
        
        //Image image1 =Image.FromFile("C:\\Users\\ICC\\Desktop\\333.jpg");
        Image image1 = Image.FromFile("C:\\Users\\ICC\\Desktop\\IMG5.png");
        

        Result [] result=br.DecodeMultiple(image1 as Bitmap);

        if (result == null)
        {
            label1.Text = "读取失败";
            MessageBox.Show("读取失败");
        }
        else
        {
            label1.Text = "";
            for(int i = 0; i < result.Length; i++)
            {
                label1.Text +="   :" +result[i].Text;
            }
            //MessageBox.Show("读取成功，内容：" + result[0].Text);
        }