img1 img2 QVGA GRAYSCALE hmirror 0 vflip 0 True 224 224 0x600000 /sd/mnist.kmodel 0 0 0 0 255 0 230 20 识别数字为： img1 img1 0 0 img2 img1 28 28 img2 1 img2 img2 img2 230 50 img2 NEQ GREEN 300 20 Hello, world!