Qt封装百度人脸识别+图像识别
2024-04-20 14:21:46
AI技术的发展在最近几年如火如荼，工资待遇也是水涨船高，应用的前景也是非常广阔，去年火起来的人脸识别，今年全国遍地开花，之前封装了下face++的人脸识别等接口，今年看了下百度的AI，还免费了，效果也是越来越好，活体检测这个算法更是做的吊炸天（只需要传一张图片就能判断图片中的人是翻拍的照片非活体），牛逼的一塌糊涂，我反正是跪了。特意花了半天时间将百度人脸识别+图像识别封装了下，以便后期使用。顺便预测下，百度AI在未来的国内AI市场中，不是第一就是第二，而且会持续保持至少十年。
为了兼容qt4，特意采用了qtscript解析收到的数据。
* 1:可识别身份证正面信息+背面信息
* 2:可识别银行卡信息
* 3:可识别驾驶证+行驶证信息
* 4:可进行人脸识别,人脸比对,活体检测
* 5:可设置请求地址+用户密钥+应用密钥
* 6:直接传入图片即可,信号返回,毫秒级极速响应
* 7:通用Qt4-Qt5,windows linux 嵌入式linux
可执行文件下载：https://pan.baidu.com/s/1pzhQL_YMYZyn4hW94e0QsQ
核心代码：
QByteArray FaceBaiDu::getImageData(const QImage &img)
{QImage image = img;QByteArray imageData;QBuffer buffer(&imageData);image.save(&buffer, "jpg");return imageData.toBase64();
}QString FaceBaiDu::getImageData2(const QImage &img)
{return QString(getImageData(img));
}QHttpPart FaceBaiDu::dataToHttpPart(const QByteArray &body, const QString &name)
{QHttpPart httpPart;httpPart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant(QString("form-data;name=\"%1\"").arg(name)));httpPart.setBody(body);return httpPart;
}void FaceBaiDu::sendData(const QString &url, const QList<QHttpPart> &httpParts)
{//初始化消息体QHttpMultiPart *httpMultiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);//逐个添加消息内容foreach (QHttpPart httpPart, httpParts) {httpMultiPart->append(httpPart);}//初始化请求对象QNetworkRequest request;request.setUrl(QUrl(url));#ifdef ssl//设置openssl签名配置,否则在ARM上会报错QSslConfiguration conf = request.sslConfiguration();conf.setPeerVerifyMode(QSslSocket::VerifyNone);
#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))conf.setProtocol(QSsl::TlsV1_0);
#elseconf.setProtocol(QSsl::TlsV1);
#endifrequest.setSslConfiguration(conf);
#endif//发送请求QNetworkReply *reply = manager->post(request, httpMultiPart);httpMultiPart->setParent(reply);
}void FaceBaiDu::finished(QNetworkReply *reply)
{QString error = reply->errorString();if (!error.isEmpty() && error != "Unknown error") {emit receiveError(error);}if (reply->bytesAvailable() > 0 && reply->error() == QNetworkReply::NoError) {QString data = reply->readAll();reply->deleteLater();//发送接收数据信号emit receiveData(data);//初始化脚本引擎QScriptEngine engine;//构建解析对象QScriptValue script = engine.evaluate("value=" + data);//获取鉴权标识符QString token = script.property("access_token").toString();if (!token.isEmpty()) {tokenFace = token;tokenOcr = token;}//通用返回结果字段int code = script.property("error_code").toInt32();QString msg = script.property("error_msg").toString();emit receiveResult(code, msg);//人脸识别部分QScriptValue result = script.property("result");if (!result.isNull()) {//人脸识别QScriptValue face_list = result.property("face_list");if (face_list.isObject()) {checkFaceList(face_list);}//人脸比对QScriptValue score = result.property("score");if (!score.isNull()) {double value = score.toString().toDouble();if (value > 0) {emit receiveFaceCompare(QRect(), QRect(), value);} else {emit receiveFaceCompareFail();}}//活体检测QScriptValue face_liveness = result.property("face_liveness");if (!face_liveness.isNull()) {double liveness = face_liveness.toString().toDouble();if (liveness > 0) {emit receiveLive(liveness);}}//银行卡QScriptValue bank_card_number = result.property("bank_card_number");if (!bank_card_number.isNull()) {QString card_number = bank_card_number.toString();QString bank_name = result.property("bank_name").toString();if (!card_number.isEmpty()) {emit receiveBankCardInfo(card_number, bank_name);}}}//文字识别部分QScriptValue words_result = script.property("words_result");if (!words_result.isNull()) {//身份证正面QScriptValue nation = words_result.property("民族");if (nation.isObject()) {checkCardFront(words_result);}//身份证反面QScriptValue issuedby = words_result.property("签发机关");if (issuedby.isObject()) {checkCardBack(words_result);}//驾驶证QScriptValue license_number = words_result.property("证号");if (license_number.isObject()) {checkDriverLicense(words_result);}//行驶证QScriptValue model = words_result.property("品牌型号");if (model.isObject()) {checkRVehicleLicense(words_result);}}}
}void FaceBaiDu::checkFaceList(const QScriptValue &face_list)
{QRect face_rectangle;//创建迭代器逐个解析具体值QScriptValueIterator it(face_list);while (it.hasNext()) {it.next();QString face_token = it.value().property("face_token").toString();if (!face_token.isEmpty()) {QScriptValue location = it.value().property("location");if (location.isObject()) {face_rectangle.setX(location.property("left").toInt32());face_rectangle.setY(location.property("top").toInt32());face_rectangle.setWidth(location.property("width").toInt32());face_rectangle.setHeight(location.property("height").toInt32());}}it.next();if (face_rectangle.width() > 0) {emit receiveFaceRect(face_rectangle);} else {break;}}
}void FaceBaiDu::checkCardFront(const QScriptValue &scriptValue)
{QScriptValue name = scriptValue.property("姓名");QScriptValue address = scriptValue.property("住址");QScriptValue birthday = scriptValue.property("出生");QScriptValue number = scriptValue.property("公民身份号码");QScriptValue sex = scriptValue.property("性别");QScriptValue nation = scriptValue.property("民族");QString strName = name.property("words").toString();QString strAddress = address.property("words").toString();QString strBirthday = birthday.property("words").toString();QString strNumber = number.property("words").toString();QString strSex = sex.property("words").toString();QString strNation = nation.property("words").toString();emit receiveIDCardInfoFront(strName, strSex, strNumber, strBirthday, strNation, strAddress);
}void FaceBaiDu::checkCardBack(const QScriptValue &scriptValue)
{QScriptValue issuedby = scriptValue.property("签发机关");QScriptValue dateStart = scriptValue.property("签发日期");QScriptValue dateEnd = scriptValue.property("失效日期");QString strIssuedby = issuedby.property("words").toString();QString strDataStart = dateStart.property("words").toString();QString strDateEnd = dateEnd.property("words").toString();QString strDate = QString("%1.%2.%3-%4.%5.%6").arg(strDataStart.mid(0, 4)).arg(strDataStart.mid(4, 2)).arg(strDataStart.mid(6, 2)).arg(strDateEnd.mid(0, 4)).arg(strDateEnd.mid(4, 2)).arg(strDateEnd.mid(6, 2));emit receiveIDCardInfoBack(strDate, strIssuedby);
}void FaceBaiDu::checkDriverLicense(const QScriptValue &scriptValue)
{QScriptValue licenseNumber = scriptValue.property("证号");QScriptValue name = scriptValue.property("姓名");QScriptValue gender = scriptValue.property("性别");QScriptValue nationality = scriptValue.property("国籍");QScriptValue address = scriptValue.property("住址");QScriptValue birthday = scriptValue.property("出生日期");QScriptValue issueDate = scriptValue.property("初次领证日期");QScriptValue classType = scriptValue.property("准驾车型");QScriptValue validFrom = scriptValue.property("有效起始日期");QScriptValue validFor = scriptValue.property("有效期限");QString strLicenseNumber = licenseNumber.property("words").toString();QString strName = name.property("words").toString();QString strGender = gender.property("words").toString();QString strNationality = nationality.property("words").toString();QString strAddress = address.property("words").toString();QString strBirthday = birthday.property("words").toString();QString strIssueDate = issueDate.property("words").toString();QString strClassType = classType.property("words").toString();QString strValidFrom = validFrom.property("words").toString();QString strValidFor = validFor.property("words").toString();emit receiveDriverInfo(strValidFrom, strGender, "", strIssueDate, strClassType, strLicenseNumber,strValidFor, strBirthday, "1", strAddress, strNationality, strName);
}void FaceBaiDu::checkRVehicleLicense(const QScriptValue &scriptValue)
{QScriptValue plateNo = scriptValue.property("号牌号码");QScriptValue vehicleType = scriptValue.property("车辆类型");QScriptValue owner = scriptValue.property("所有人");QScriptValue address = scriptValue.property("住址");QScriptValue useCharacter = scriptValue.property("使用性质");QScriptValue model = scriptValue.property("品牌型号");QScriptValue vin = scriptValue.property("车辆识别代号");QScriptValue engineNo = scriptValue.property("发动机号码");QScriptValue registerDate = scriptValue.property("注册日期");QScriptValue issueDate = scriptValue.property("发证日期");QString strPlateNo = plateNo.property("words").toString();QString strCehicleType = vehicleType.property("words").toString();QString strOwner = owner.property("words").toString();QString strAddress = address.property("words").toString();QString strUseCharacter = useCharacter.property("words").toString();QString strModel = model.property("words").toString();QString strVin = vin.property("words").toString();QString strEngineNo = engineNo.property("words").toString();QString strRegisterDate = registerDate.property("words").toString();QString strIssueDate = issueDate.property("words").toString();emit receiveRvehicleInfo(strIssueDate, strCehicleType, "", strVin, strPlateNo, strUseCharacter,strAddress, strOwner, strModel, strRegisterDate, strEngineNo);
}void FaceBaiDu::sendData(const QString &url, const QString &data, const QString &header)
{QNetworkRequest request;request.setHeader(QNetworkRequest::ContentTypeHeader, header);request.setUrl(QUrl(url));#ifdef ssl//设置openssl签名配置,否则在ARM上会报错QSslConfiguration conf = request.sslConfiguration();conf.setPeerVerifyMode(QSslSocket::VerifyNone);
#if (QT_VERSION > QT_VERSION_CHECK(5,0,0))conf.setProtocol(QSsl::TlsV1_0);
#elseconf.setProtocol(QSsl::TlsV1);
#endifrequest.setSslConfiguration(conf);
#endifmanager->post(request, data.toUtf8());
}void FaceBaiDu::getToken(const QString &client_id, const QString &client_secret)
{QStringList list;list.append(QString("grant_type=%1").arg("client_credentials"));list.append(QString("client_id=%1").arg(client_id));list.append(QString("client_secret=%1").arg(client_secret));QString data = list.join("&");QString url = "https://aip.baidubce.com/oauth/2.0/token";sendData(url, data);
}void FaceBaiDu::detect(const QImage &img)
{QStringList list;list.append(QString("{\"image\":\"%1\",\"image_type\":\"BASE64\"}").arg(getImageData2(img)));QString data = list.join("");QString url = QString("https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token=%1").arg(tokenFace);sendData(url, data);
}void FaceBaiDu::compare(const QImage &img1, const QImage &img2)
{QString imgData1 = getImageData2(img1);QString imgData2 = getImageData2(img2);//如果需要活体检测则NONE改为LOW NORMAL HIGHQStringList list;list.append("[");list.append(QString("{\"image\":\"%1\",\"image_type\":\"BASE64\",\"liveness_control\":\"NONE\"}").arg(imgData1));list.append(",");list.append(QString("{\"image\":\"%1\",\"image_type\":\"BASE64\",\"liveness_control\":\"NONE\"}").arg(imgData2));list.append("]");QString data = list.join("");QString url = QString("https://aip.baidubce.com/rest/2.0/face/v3/match?access_token=%1").arg(tokenFace);sendData(url, data);
}void FaceBaiDu::live(const QImage &img)
{QList<QImage> imgs;if (!img.isNull()) {imgs << img;}live(imgs);
}void FaceBaiDu::live(const QList<QImage> &imgs)
{//记住最后一次处理的时间,限制频繁的调用QDateTime now = QDateTime::currentDateTime();if (lastTime.msecsTo(now) < 500) {return;}lastTime = now;QStringList list;list.append("[");int count = imgs.count();for (int i = 0; i < count; i++) {QString imgData = getImageData2(imgs.at(i));list.append(QString("{\"image\":\"%1\",\"image_type\":\"BASE64\"}").arg(imgData));if (i < count - 1) {list.append(",");}}list.append("]");QString data = list.join("");QString url = QString("https://aip.baidubce.com/rest/2.0/face/v3/faceverify?access_token=%1").arg(tokenFace);sendData(url, data);
}void FaceBaiDu::idmatch(const QString &idcard, const QString &name)
{QStringList list;list.append(QString("{\"id_card_num\":\"%1\",\"name\":\"%2\"}").arg(idcard).arg(name));QString data = list.join("");QString url = QString("https://aip.baidubce.com/rest/2.0/face/v3/person/idmatch?access_token=%1").arg(tokenFace);sendData(url, data);
}void FaceBaiDu::idcard(const QImage &img, bool front)
{QList<QHttpPart> httpParts;httpParts << dataToHttpPart(front ? "front" : "back", "id_card_side");httpParts << dataToHttpPart(getImageData(img), "image");QString url = QString("https://aip.baidubce.com/rest/2.0/ocr/v1/idcard?access_token=%1").arg(tokenOcr);sendData(url, httpParts);
}void FaceBaiDu::bankcard(const QImage &img)
{QList<QHttpPart> httpParts;httpParts << dataToHttpPart(getImageData(img), "image");QString url = QString("https://aip.baidubce.com/rest/2.0/ocr/v1/bankcard?access_token=%1").arg(tokenOcr);sendData(url, httpParts);
}void FaceBaiDu::driverLicense(const QImage &img)
{QList<QHttpPart> httpParts;httpParts << dataToHttpPart(getImageData(img), "image");QString url = QString("https://aip.baidubce.com/rest/2.0/ocr/v1/driving_license?access_token=%1").arg(tokenOcr);sendData(url, httpParts);
}void FaceBaiDu::vehicleLicense(const QImage &img)
{QList<QHttpPart> httpParts;httpParts << dataToHttpPart(getImageData(img), "image");QString url = QString("https://aip.baidubce.com/rest/2.0/ocr/v1/vehicle_license?access_token=%1").arg(tokenOcr);sendData(url, httpParts);
}
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