Qt封装百度人脸识别+图像识别
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
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);
#else
conf.setProtocol(QSsl::TlsV1);
#endif
request.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);
#else
conf.setProtocol(QSsl::TlsV1);
#endif
request.setSslConfiguration(conf);
#endif manager->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 HIGH
QStringList 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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