lc-fangdaosha/eventServer/plateNumber.go

package eventServer

import (
	"encoding/base64"
	"fmt"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/errors"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/profile"
	"github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/common/regions"
	ocr "github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/ocr/v20181119"
)

// CallLicensePlateRecognitionAPI 识别车牌
func CallLicensePlateRecognitionAPI(file []byte) (number string, err error) {
	// 实例化一个认证对象，入参需要传入腾讯云账户 SecretId 和 SecretKey，此处还需注意密钥对的保密
	credential := common.NewCredential(
		"SecretId",
		"SecretKey",
	)
	// 实例化一个client选项
	cpf := profile.NewClientProfile()
	cpf.HttpProfile.Endpoint = "ocr.tencentcloudapi.com"
	// 实例化要请求产品的client对象,clientProfile是可选的
	client, _ := ocr.NewClient(credential, regions.Shanghai, cpf)

	// 实例化一个请求对象,每个接口都会对应一个request对象
	request := ocr.NewLicensePlateOCRRequest()
	base64String := base64.StdEncoding.EncodeToString(file)
	request.ImageBase64 = common.StringPtr(base64String)

	// 返回的resp是一个LicensePlateOCRResponse的实例，与请求对象对应
	response, err := client.LicensePlateOCR(request)
	if _, ok := err.(*errors.TencentCloudSDKError); ok {
		fmt.Printf("An API error has returned: %s", err)
		return
	}
	if err != nil {
		panic(err)
	}

	// 输出json格式的字符串回包
	fmt.Printf("%s\n", response.ToJsonString())
	fmt.Printf("车牌：%s\n", *response.Response.Number)
	return *response.Response.Number, err
}

type AutoGenerated struct {
	Response struct {
		Color             string `json:"Color"`
		Confidence        int    `json:"Confidence"`
		LicensePlateInfos []struct {
			Color      string `json:"Color"`
			Confidence int    `json:"Confidence"`
			Number     string `json:"Number"`
			Rect       struct {
				Height int `json:"Height"`
				Width  int `json:"Width"`
				X      int `json:"X"`
				Y      int `json:"Y"`
			} `json:"Rect"`
		} `json:"LicensePlateInfos"`
		Number string `json:"Number"`
		Rect   struct {
			Height int `json:"Height"`
			Width  int `json:"Width"`
			X      int `json:"X"`
			Y      int `json:"Y"`
		} `json:"Rect"`
		RequestID string `json:"RequestId"`
	} `json:"Response"`
}