识别报错！ about imageocr HOT 10 CLOSED

public function __construct($path)
{
    $image=new Image($path);
    $this->image_ocr=new ImageOCR($image);

    //开启的debug模式
    $this->image_ocr->setDebug(true);
    //初始化
    $this->image_ocr->setMaxGrey(90);
    $this->image_ocr->setMinGrey(25); // 130
    $this->image_ocr->setStandardWidth(65);
    $this->image_ocr->setStandardHeight(25);
}

public function standard()
{
    //避免重复调用
    if (!empty($this->standard_data)) {
        return $this->standard_data;
    }

    try {
        //第一步灰度化
        $this->image_ocr->grey();
        //第二步二值化
        $this->image_ocr->hashByBackground(ImageOCR::MAX_MODEL);
        //下一步会用到连通域分割法，先初始化
        $this->image_ocr->setImageConnect();
        //第三部除噪&第四步分割
        $this->image_ocr->splitByConnect();
        //第五步标准化
        return $this->image_ocr->standard();
    } catch (\Exception $e) {
        echo $e->getMessage();
    }
    return false;
}