华为云API文字识别OCR的高效性—AI中名副其实的电子眼
云服务、API、SDK，调试，查看，我都行
阅读短文您可以学习到：人工智能AI自言语言的情感分析、文本分词、文本翻译
1 Classroom和Toolkit的关系
1.1 Classroom的简介
classroom是基于华为云的云上软件教学服务，支持初级开发者和高校师生实现备课、上课、作业、考试、实验、实训等全教学流程的线上教学，提供多类习题自动判题、企业级DevOps实训、免费在线习题库等众多高级特性辅助进行数字化教学转型。
1.2 Toolkit插件之华为云API实战课程
2 IntelliJ IDEA 之API插件介绍
API插件支持 VS Code IDE、IntelliJ IDEA等平台、以及华为云自研 CodeArts IDE，基于华为云服务提供的能力，帮助开发者更高效、便捷的搭建应用。API插件关联华为云服务下的 API Explorer、DevStar、CodeLabs、SDK 中心和 CLI 中心产品，致力于为开发者提供更稳定、快速、安全的编程体验。
在本插件中，我们提供了但不局限于如下的功能：
对接华为云API开放平台，支持用户检索API、查看API文档、调试API、以及提供SDK示例代码供用户学习如何使用API。
提供华为云SDK代码片段补全功能，SDK依赖包自动引入，加速用户集成华为云API。
对接华为云开发体验馆Codelabs，提供500+云服务代码示例，向导式教程帮助用户快速学习。
说明：
在IntelliJ IDEA等系列平台和VS Code IDE，华为云API插件的名称是Huawei Cloud API。而在CodeArts IDE，API插件是IDE原生内置的，名称是华为云API开发套件。
API插件在IntelliJ IDEA等系列平台和VS Code IDE的使用依赖底座插件，请提前安装底座插件。
3 API插件安装--IntelliJ IDEA
3.1 IntelliJ IDEA等平台
安装准备：下载并安装JDK1.8或更高版本。下载并安装IntelliJ IDEA 2020.2或更高版本。
须知：IntellIj平台同时支撑包括Goland、Pycharm等在内的IDE，若在其它相关IDE上开发，请下载配置好对应语言的编译器或者解释器。这里以IDEA为例介绍IntelliJ平台插件的安装流程，其他IntelliJ系列的IDE请参考IDEA。
开始安装：
您可以在直接在IDE插件市场或者直接在JetBrains插件市场下载离线包安装。
IDE安装
- 在IntelliJ IDEA顶部菜单栏中选择File > Settings，在Settings对话框的左侧导航栏中单击Plugins。
- Plugins区域单击Marketplace,在搜索栏中输入Huawei Cloud API。
- Search Results区域会出现Huawei Cloud API，单击Install，完成后重启IDE。
离线包安装：
- 进入插件市场搜索Huawei Cloud API，进入插件详情页，在Versions页签下选择想要版本的API插件，点击Download下载离线的插件压缩包保存到本地。。
- 在IntelliJ IDEA顶部菜单栏中选择File > Settings，在Settings对话框的左侧导航栏中单击Plugins。
- 在Plugins区域单击 ，再单击Install Plugin from Disk...。
- 在Choose Plugin File对话框中选择离线安装包（不用解压），并按照IntelliJ IDEA安装页面的提示，完成后续安装步骤。
说明：若当前您想要安装插件的IntelliJ IDE已经在桌面打开，则进入插件市场搜索Huawei Cloud API，进入插件详情页，在右上角会识别到本地已经打开的IDE，点击相应按钮，在弹出的IDE窗口中点击ok，则IDE后台会开始安装相应版本的API插件。
安装验证：在IntelliJ系列平台上安装插件成功后在左侧的导航栏中可以看到Huawei Cloud Toolkit图标，点击后面板会出现Huawei Cloud API的字样，则说明安装成功。
3.2 API列表
左侧展示API列表，可以查询所有API，目前云服务206，APIs9213
华为云提供了文字识别服务端SDK，您可以直接集成服务端SDK来调用文字识别服务的相关API，从而实现对文字识别服务的快速操作。
该示例展示了如何通过go版SDK实现文字识别。
前期准备：
已注册华为云，并完成 实名认证 。
已订阅文字识别服务。
已具备开发环境，支持go 1.14及其以上版本。
已获取华为云账号对应的Access Key（AK）和Secret Access Key（SK）。请在华为云控制台“我的凭证 > 访问密钥”页面上创建和查看您的AK/SK。具体请参见访问密钥 。https://support.huaweicloud.cn/usermanual-ca/zh-cn_topic_0046606340.html
已获取文字识别服务对应区域的项目ID，请在华为云控制台“我的凭证 > API凭证”页面上查看项目ID。具体请参见 API凭证。https://support.huaweicloud.cn/usermanual-ca/ca_01_0002.html。
环境配置：
// 启用go module
export GO111MODULE=on
export GONOSUMDB=*
//若下载不了sdk，则需要设置源
export GOPROXY=https://repo.huaweicloud.cn/repository/goproxy/,direct
安装SDK及代码依赖：
// 安装华为云Go库
go get -u github.com/huaweicloud/huaweicloud-sdk-go-v3
// 安装依赖
go get github.com/json-iterator/go
go get github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/signer@v0.1.2
go get github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/provider@v0.1.2
go get github.com/huaweicloud/huaweicloud-sdk-go-v3/core/region@v0.1.2
4 AI文字识别服务文字识别示例
4.1 go版本
导入依赖模块
import (
"fmt"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
ocr "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/ocr/v1"
"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/ocr/v1/model"
region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/ocr/v1/region"
)
初始化认证信息以及文字识别服务的客户端
ak := "<YOUR AK>"
sk := "<YOUR SK>"
regionName := "<YOUR REGION NAME>"
imageBase64 := "<YOUR IMAGE BASE64>"
// 初始化认证信息
auth := basic.NewCredentialsBuilder().
WithAk(ak).
WithSk(sk).
Build()
// 获取服务调用client
client := ocr.NewOcrClient(
ocr.OcrClientBuilder().
WithRegion(region.ValueOf(regionName)).
WithCredential(auth).
Build())
相关参数说明如下
ak：华为云账号Access Key。
sk：华为云账号Secret Access Key 。
service region: 服务所在区域名称，例如：
cn-north-1 北京一
cn-north-4 北京四
CN_EAST_3 上海一
CN_SOUTH_1 华南广州
6.SDK demo代码解析
通用文字识别
request := &model.RecognizeGeneralTextRequest{}
quickModeGeneralTextRequestBody := true
detectDirectionGeneralTextRequestBody := true
imageGeneralTextRequestBody := imageBase64
request.Body = &model.GeneralTextRequestBody{
QuickMode: &quickModeGeneralTextRequestBody,
DetectDirection: &detectDirectionGeneralTextRequestBody,
Image: &imageGeneralTextRequestBody,
}
response, err := client.RecognizeGeneralText(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
通用表格识别
request := &model.RecognizeGeneralTableRequest{}
returnExcelGeneralTableRequestBody := true
returnConfidenceGeneralTableRequestBody := true
returnTextLocationGeneralTableRequestBody := true
imageGeneralTableRequestBody := imageBase64
request.Body = &model.GeneralTableRequestBody{
ReturnExcel: &returnExcelGeneralTableRequestBody,
ReturnConfidence: &returnConfidenceGeneralTableRequestBody,
ReturnTextLocation: &returnTextLocationGeneralTableRequestBody,
Image: &imageGeneralTableRequestBody,
}
response, err := client.RecognizeGeneralTable(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
身份证识别
request := &model.RecognizeIdCardRequest{}
returnVerificationIdCardRequestBody := true
sideIdCardRequestBody := "front"
imageIdCardRequestBody := imageBase64
request.Body = &model.IdCardRequestBody{
ReturnVerification: &returnVerificationIdCardRequestBody,
Side: &sideIdCardRequestBody,
Image: &imageIdCardRequestBody,
}
response, err := client.RecognizeIdCard(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
银行卡识别
request := &model.RecognizeBankcardRequest{}
imageBankcardRequestBody := imageBase64
request.Body = &model.BankcardRequestBody{
Image: &imageBankcardRequestBody,
}
response, err := client.RecognizeBankcard(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
智能分类识别
request := &model.RecognizeAutoClassificationRequest{}
imageAutoClassificationRequestBody := imageBase64
request.Body = &model.AutoClassificationRequestBody{
Image: &imageAutoClassificationRequestBody,
}
response, err := client.RecognizeAutoClassification(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
增值税发票识别
request := &model.RecognizeVatInvoiceRequest{}
advancedModeVatInvoiceRequestBody := true
imageVatInvoiceRequestBody := imageBase64
request.Body = &model.VatInvoiceRequestBody{
AdvancedMode: &advancedModeVatInvoiceRequestBody,
Image: &imageVatInvoiceRequestBody,
}
response, err := client.RecognizeVatInvoice(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
定额发票识别
request := &model.RecognizeQuotaInvoiceRequest{}
imageQuotaInvoiceRequestBody := imageBase64
request.Body = &model.QuotaInvoiceRequestBody{
Image: &imageQuotaInvoiceRequestBody,
}
response, err := client.RecognizeQuotaInvoice(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
手写文字识别
request := &model.RecognizeHandwritingRequest{}
detectDirectionHandwritingRequestBody := true
charSetHandwritingRequestBody := "digit"
quickModeHandwritingRequestBody := true
imageHandwritingRequestBody := imageBase64
request.Body = &model.HandwritingRequestBody{
DetectDirection: &detectDirectionHandwritingRequestBody,
CharSet: &charSetHandwritingRequestBody,
QuickMode: &quickModeHandwritingRequestBody,
Image: &imageHandwritingRequestBody,
}
response, err := client.RecognizeHandwriting(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
行驶证识别
request := &model.RecognizeVehicleLicenseRequest{}
returnIssuingAuthorityVehicleLicenseRequestBody := true
sideVehicleLicenseRequestBody := "front"
imageVehicleLicenseRequestBody := imageBase64
request.Body = &model.VehicleLicenseRequestBody{
ReturnIssuingAuthority: &returnIssuingAuthorityVehicleLicenseRequestBody,
Side: &sideVehicleLicenseRequestBody,
Image: &imageVehicleLicenseRequestBody,
}
response, err := client.RecognizeVehicleLicense(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
道路运输证识别
request := &model.RecognizeTransportationLicenseRequest{}
imageTransportationLicenseRequestBody := imageBase64
request.Body = &model.TransportationLicenseRequestBody{
Image: &imageTransportationLicenseRequestBody,
}
response, err := client.RecognizeTransportationLicense(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
出租车发票识别
request := &model.RecognizeTaxiInvoiceRequest{}
imageTaxiInvoiceRequestBody := imageBase64
request.Body = &model.TaxiInvoiceRequestBody{
Image: &imageTaxiInvoiceRequestBody,
}
response, err := client.RecognizeTaxiInvoice(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
车辆通行费发票识别
request := &model.RecognizeTollInvoiceRequest{}
imageTollInvoiceRequestBody := imageBase64
request.Body = &model.TollInvoiceRequestBody{
Image: &imageTollInvoiceRequestBody,
}
response, err := client.RecognizeTollInvoice(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
机动车销售发票识别
request := &model.RecognizeMvsInvoiceRequest{}
imageMvsInvoiceRequestBody := imageBase64
request.Body = &model.MvsInvoiceRequestBody{
Image: &imageMvsInvoiceRequestBody,
}
response, err := client.RecognizeMvsInvoice(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
车牌识别
request := &model.RecognizeLicensePlateRequest{}
imageLicensePlateRequestBody := imageBase64
request.Body = &model.LicensePlateRequestBody{
Image: &imageLicensePlateRequestBody,
}
response, err := client.RecognizeLicensePlate(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
飞机行程单识别
request := &model.RecognizeFlightItineraryRequest{}
imageFlightItineraryRequestBody := imageBase64
request.Body = &model.FlightItineraryRequestBody{
Image: &imageFlightItineraryRequestBody,
}
response, err := client.RecognizeFlightItinerary(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
营业执照识别
request := &model.RecognizeBusinessLicenseRequest{}
imageBusinessLicenseRequestBody := imageBase64
request.Body = &model.BusinessLicenseRequestBody{
Image: &imageBusinessLicenseRequestBody,
}
response, err := client.RecognizeBusinessLicense(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
网络图片识别
request := &model.RecognizeWebImageRequest{}
var listExtractTypebody = []string{
"contact_info",
"image_size",
}
detectDirectionWebImageRequestBody := true
imageWebImageRequestBody := imageBase64
request.Body = &model.WebImageRequestBody{
ExtractType: &listExtractTypebody,
DetectDirection: &detectDirectionWebImageRequestBody,
Image: &imageWebImageRequestBody,
}
response, err := client.RecognizeWebImage(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
驾驶证识别
request := &model.RecognizeDriverLicenseRequest{}
returnIssuingAuthorityDriverLicenseRequestBody := true
sideDriverLicenseRequestBody := "front"
imageDriverLicenseRequestBody := imageBase64
request.Body = &model.DriverLicenseRequestBody{
ReturnIssuingAuthority: &returnIssuingAuthorityDriverLicenseRequestBody,
Side: &sideDriverLicenseRequestBody,
Image: &imageDriverLicenseRequestBody,
}
response, err := client.RecognizeDriverLicense(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
名片识别
request := &model.RecognizeBusinessCardRequest{}
returnAdjustedImageBusinessCardRequestBody := true
detectDirectionBusinessCardRequestBody := true
imageBusinessCardRequestBody := imageBase64
request.Body = &model.BusinessCardRequestBody{
ReturnAdjustedImage: &returnAdjustedImageBusinessCardRequestBody,
DetectDirection: &detectDirectionBusinessCardRequestBody,
Image: &imageBusinessCardRequestBody,
}
response, err := client.RecognizeBusinessCard(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
火车票识别
request := &model.RecognizeTrainTicketRequest{}
imageTrainTicketRequestBody := imageBase64
request.Body = &model.TrainTicketRequestBody{
Image: &imageTrainTicketRequestBody,
}
response, err := client.RecognizeTrainTicket(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
VIN码识别
request := &model.RecognizeVinRequest{}
imageVinRequestBody := imageBase64
request.Body = &model.VinRequestBody{
Image: &imageVinRequestBody,
}
response, err := client.RecognizeVin(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
护照识别
request := &model.RecognizePassportRequest{}
imagePassportRequestBody := imageBase64
request.Body = &model.PassportRequestBody{
Image: &imagePassportRequestBody,
}
response, err := client.RecognizePassport(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
保险单卡识别
request := &model.RecognizeInsurancePolicyRequest{}
detectDirectionInsurancePolicyRequestBody := true
imageInsurancePolicyRequestBody := imageBase64
request.Body = &model.InsurancePolicyRequestBody{
DetectDirection: &detectDirectionInsurancePolicyRequestBody,
Image: &imageInsurancePolicyRequestBody,
}
response, err := client.RecognizeInsurancePolicy(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
道路运输从业资格证识别
request := &model.RecognizeQualificationCertificateRequest{}
imageQualificationCertificateRequestBody := imageBase64
request.Body = &model.QualificationCertificateRequestBody{
Image: &imageQualificationCertificateRequestBody,
}
response, err := client.RecognizeQualificationCertificate(request)
if err == nil {
fmt.Printf("%+v\n", response)
} else {
fmt.Println(err)
}
4.2 python版本
开始使用
导入依赖模块
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkocr.v1.region.ocr_region import OcrRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkocr.v1 import *
初始化认证信息
def get_credential():
return BasicCredentials(ak, sk)
相关参数说明如下所示：
ak：华为云账号Access Key。
sk：华为云账号Secret Access Key 。
初始化文字识别服务的客户端
def get_client():
return OcrClient.new_builder(OcrClient)
.with_credentials(credentials)
.with_region(OcrRegion.CN_NORTH_4)
.build()
相关参数说明如下所示：
service region: 服务所在区域，例如：
CN_NORTH_1 北京一
CN_NORTH_4 北京四
CN_EAST_3 上海一
CN_SOUTH_1 华南广州
SDK demo代码解析
通用文字识别
def recognize_general_text_request():
try:
request = RecognizeGeneralTextRequest()
request.body = GeneralTextRequestBody(
image=image_base64
)
response = client.recognize_general_text(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
通用表格识别
def recognize_general_table_request():
try:
request = RecognizeGeneralTableRequest()
request.body = GeneralTableRequestBody(
image=image_base64
)
response = client.recognize_general_table(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
身份证识别
def recognize_id_card_request():
try:
request = RecognizeIdCardRequest()
request.body = IdCardRequestBody(
image=image_base64
)
response = client.recognize_id_card(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
银行卡识别
def recognize_bankcard_request():
try:
request = RecognizeBankcardRequest()
request.body = BankcardRequestBody(
image=image_base64
)
response = client.recognize_bankcard(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
智能分类识别
def recognize_auto_classification_request():
try:
request = RecognizeAutoClassificationRequest()
request.body = AutoClassificationRequestBody(
image=image_base64
)
response = client.recognize_auto_classification(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
增值税发票识别
def recognize_vat_invoice_request():
try:
request = RecognizeVatInvoiceRequest()
request.body = VatInvoiceRequestBody(
image=image_base64
)
response = client.recognize_vat_invoice(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
定额发票识别
def recognize_quota_invoice_request():
try:
request = RecognizeQuotaInvoiceRequest()
request.body = QuotaInvoiceRequestBody(
image=image_base64
)
response = client.recognize_quota_invoice(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
手写文字识别
def recognize_handwriting_request():
try:
request = RecognizeHandwritingRequest
request.body = HandwritingRequestBody(
image=image_base64
)
response = client.recognize_handwriting(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
行驶证识别
def recognize_vehicle_license_request():
try:
request = RecognizeIdCardRequest()
request.body = VehicleLicenseRequestBody(
image=image_base64
)
response = client.recognize_vehicle_license(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
道路运输证识别
def recognize_transportation_license_request():
try:
request = RecognizeTransportationLicenseRequest()
request.body = TransportationLicenseRequestBody(
image=image_base64
)
response = client.recognize_transportation_license(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
出租车发票识别
def recognize_taxi_invoice_request():
try:
request = RecognizeTaxiInvoiceRequest()
request.body = TaxiInvoiceRequestBody(
image=image_base64
)
response = client.recognize_taxi_invoice(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
车辆通行费发票识别
def recognize_toll_invoice_request():
try:
request = RecognizeTollInvoiceRequest()
request.body = TollInvoiceRequestBody(
image=image_base64
)
response = client.recognize_toll_invoice(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
机动车销售发票识别
def recognize_mvs_invoice_request():
try:
request = RecognizeMvsInvoiceRequest()
request.body = MvsInvoiceRequestBody(
image=image_base64
)
response = client.recognize_mvs_invoice(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
车牌识别
def recognize_license_plate_request():
try:
request = RecognizeLicensePlateRequest()
request.body = LicensePlateRequestBody(
image=image_base64
)
response = client.recognize_license_plate(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
飞机行程单识别
def recognize_flight_itinerary_request():
try:
request = RecognizeFlightItineraryRequest()
request.body = FlightItineraryRequestBody(
image=image_base64
)
response = client.recognize_flight_itinerary(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
营业执照识别
def recognize_business_license_request():
try:
request = RecognizeBusinessLicenseRequest()
request.body = BusinessLicenseRequestBody(
image=image_base64
)
response = client.recognize_business_license(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
网络图片识别
def recognize_web_image_request():
try:
request = RecognizeWebImageRequest()
request.body = WebImageRequestBody(
image=image_base64
)
response = client.recognize_web_image(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
驾驶证识别
def recognize_driver_license_request():
try:
request = RecognizeDriverLicenseRequest()
request.body = DriverLicenseRequestBody(
image=image_base64
)
response = client.recognize_driver_license(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
名片识别
def recognize_business_card_request():
try:
request = RecognizeBusinessCardRequest()
request.body = BusinessCardRequestBody(
image=image_base64
)
response = client.recognize_business_card(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
火车票识别
def recognize_train_ticket_request():
try:
request = RecognizeTrainTicketRequest()
request.body = TrainTicketRequestBody(
image=image_base64
)
response = client.recognize_train_ticket(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
VIN码识别
def recognize_vin_request():
try:
request = RecognizeVinRequest()
request.body = VinRequestBody(
image=image_base64
)
response = client.recognize_vin(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
护照识别
def recognize_passport_request():
try:
request = RecognizePassportRequest()
request.body = PassportRequestBody(
image=image_base64
)
response = client.recognize_passport(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
保险单识别
def recognize_insurance_policy_request():
try:
request = RecognizeInsurancePolicyRequest()
request.body = InsurancePolicyRequestBody(
image=image_base64
)
response = client.recognize_insurance_policy(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
道路运输从业资格证识别
def recognize_transportation_qualification_certificate_request():
try:
request = RecognizeQualificationCertificateRequest()
request.body = QualificationCertificateRequestBody(
image=image_base64
)
response = client.recognize_transportation_qualification_certificate(request)
print(response)
except exceptions.ClientRequestException as e:
print(e.status_code)
print(e.request_id)
print(e.error_code)
print(e.error_msg)
4.3 java版本
开始使用
导入依赖模块
import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.ocr.v1.region.OcrRegion;
import com.huaweicloud.sdk.ocr.v1.*;
import com.huaweicloud.sdk.ocr.v1.model.*;
初始化认证信息
public static ICredential getCredential(String ak, String sk) {
return new BasicCredentials().withAk(ak).withSk(sk);
}
相关参数说明如下所示：
ak：华为云账号Access Key。
sk：华为云账号Secret Access Key 。
初始化文字识别服务的客户端
public static OcrClient getClient(Region region, ICredential auth) {
return OcrClient.newBuilder().withCredential(auth).withRegion(region).build();
}
相关参数说明如下所示：
service region: 服务所在区域，例如：
CN_NORTH_1 北京一
CN_NORTH_4 北京四
CN_EAST_3 上海一
CN_SOUTH_1 华南广州
SDK demo代码解析
通用文字识别
private static void generalText(OcrClient ocrClient, String image) {
RecognizeGeneralTextRequest recognizeGeneralTextRequest = new RecognizeGeneralTextRequest();
GeneralTextRequestBody requestBody = new GeneralTextRequestBody();
requestBody.setImage(image);
recognizeGeneralTextRequest.setBody(requestBody);
try {
RecognizeGeneralTextResponse textResponse = ocrClient.recognizeGeneralText(recognizeGeneralTextRequest);
System.out.println(textResponse.getResult());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
通用表格识别
private static void generalTable(OcrClient ocrClient, String image) {
RecognizeGeneralTableRequest request = new RecognizeGeneralTableRequest();
GeneralTableRequestBody requestBody = new GeneralTableRequestBody();
requestBody.withImage(image);
request.withBody(requestBody);
try {
RecognizeGeneralTableResponse response = ocrClient.recognizeGeneralTable(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
身份证识别
private static void idCard(OcrClient ocrClient, String image) {
RecognizeIdCardRequest request = new RecognizeIdCardRequest();
IdCardRequestBody body = new IdCardRequestBody();
body.withReturnVerification(true);
body.withSide("front");
body.withImage(image);
request.withBody(body);
try {
RecognizeIdCardResponse response = ocrClient.recognizeIdCard(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
银行卡识别
private static void bankcard(OcrClient ocrClient, String image) {
RecognizeBankcardRequest recognizeBankcardRequest = new RecognizeBankcardRequest();
BankcardRequestBody bankcardRequestBody = new BankcardRequestBody();
bankcardRequestBody.setImage(image);
recognizeBankcardRequest.setBody(bankcardRequestBody);
try {
RecognizeBankcardResponse response = ocrClient.recognizeBankcard(recognizeBankcardRequest);
System.out.println(response);
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
智能分类识别
private static void autoClassification(OcrClient ocrClient, String image) {
RecognizeAutoClassificationRequest request = new RecognizeAutoClassificationRequest();
AutoClassificationRequestBody requestBody = new AutoClassificationRequestBody();
requestBody.withImage(image);
request.setBody(requestBody);
try {
RecognizeAutoClassificationResponse response = ocrClient.recognizeAutoClassification(request);
System.out.println(response);
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
增值税发票识别
private static void vatInvoice(OcrClient ocrClient, String image) {
RecognizeVatInvoiceRequest request = new RecognizeVatInvoiceRequest();
VatInvoiceRequestBody body = new VatInvoiceRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeVatInvoiceResponse response = ocrClient.recognizeVatInvoice(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
定额发票识别
private static void quotaInvoice(OcrClient ocrClient, String image) {
RecognizeQuotaInvoiceRequest request = new RecognizeQuotaInvoiceRequest();
QuotaInvoiceRequestBody body = new QuotaInvoiceRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeQuotaInvoiceResponse response = ocrClient.recognizeQuotaInvoice(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
手写文字识别
private static void handwriting(OcrClient ocrClient, String image) {
RecognizeHandwritingRequest request = new RecognizeHandwritingRequest();
HandwritingRequestBody body = new HandwritingRequestBody();
body.withDetectDirection(true);
body.withQuickMode(true);
body.withImage(image);
request.withBody(body);
try {
RecognizeHandwritingResponse response = ocrClient.recognizeHandwriting(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
行驶证识别
private static void vehicleLicense(OcrClient ocrClient, String image) {
RecognizeVehicleLicenseRequest request = new RecognizeVehicleLicenseRequest();
VehicleLicenseRequestBody body = new VehicleLicenseRequestBody();
body.withReturnIssuingAuthority(true);
body.withImage(image);
request.withBody(body);
try {
RecognizeVehicleLicenseResponse response = ocrClient.recognizeVehicleLicense(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
道路运输证识别
private static void transportationLicense(OcrClient ocrClient, String image) {
RecognizeTransportationLicenseRequest request = new RecognizeTransportationLicenseRequest();
TransportationLicenseRequestBody body = new TransportationLicenseRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeTransportationLicenseResponse response = ocrClient.recognizeTransportationLicense(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
出租车发票识别
private static void taxiInvoice(OcrClient ocrClient, String image) {
RecognizeTaxiInvoiceRequest request = new RecognizeTaxiInvoiceRequest();
TaxiInvoiceRequestBody body = new TaxiInvoiceRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeTaxiInvoiceResponse response = ocrClient.recognizeTaxiInvoice(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
车辆通行费发票识别
private static void tollInvoice(OcrClient ocrClient, String image) {
RecognizeTollInvoiceRequest request = new RecognizeTollInvoiceRequest();
TollInvoiceRequestBody body = new TollInvoiceRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeTollInvoiceResponse response = ocrClient.recognizeTollInvoice(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
机动车销售发票识别
private static void mvsInvoice(OcrClient ocrClient, String image) {
RecognizeMvsInvoiceRequest request = new RecognizeMvsInvoiceRequest();
MvsInvoiceRequestBody body = new MvsInvoiceRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeMvsInvoiceResponse response = ocrClient.recognizeMvsInvoice(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
车牌识别
private static void licensePlate(OcrClient ocrClient, String image) {
RecognizeLicensePlateRequest request = new RecognizeLicensePlateRequest();
LicensePlateRequestBody body = new LicensePlateRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeLicensePlateResponse response = ocrClient.recognizeLicensePlate(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
飞机行程单识别
private static void flightItinerary(OcrClient ocrClient, String image) {
RecognizeFlightItineraryRequest request = new RecognizeFlightItineraryRequest();
FlightItineraryRequestBody body = new FlightItineraryRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeFlightItineraryResponse response = ocrClient.recognizeFlightItinerary(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
营业执照识别
private static void businessLicense(OcrClient ocrClient, String image) {
RecognizeBusinessLicenseRequest request = new RecognizeBusinessLicenseRequest();
BusinessLicenseRequestBody body = new BusinessLicenseRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeBusinessLicenseResponse response = ocrClient.recognizeBusinessLicense(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
网络图片识别
private static void webImage(OcrClient ocrClient, String image) {
RecognizeWebImageRequest request = new RecognizeWebImageRequest();
WebImageRequestBody body = new WebImageRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeWebImageResponse response = ocrClient.recognizeWebImage(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
驾驶证识别
private static void driverLicense(OcrClient ocrClient, String image) {
RecognizeDriverLicenseRequest request = new RecognizeDriverLicenseRequest();
DriverLicenseRequestBody body = new DriverLicenseRequestBody();
body.withReturnIssuingAuthority(true);
body.withSide("front");
body.withImage(image);
request.withBody(body);
try {
RecognizeDriverLicenseResponse response = ocrClient.recognizeDriverLicense(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
名片识别
private static void businessCard(OcrClient ocrClient, String image) {
RecognizeBusinessCardRequest request = new RecognizeBusinessCardRequest();
BusinessCardRequestBody body = new BusinessCardRequestBody();
body.withDetectDirection(true);
body.withImage(image);
request.withBody(body);
try {
RecognizeBusinessCardResponse response = ocrClient.recognizeBusinessCard(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
火车票识别
private static void trainTicket(OcrClient ocrClient, String image) {
RecognizeTrainTicketRequest request = new RecognizeTrainTicketRequest();
TrainTicketRequestBody body = new TrainTicketRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeTrainTicketResponse response = ocrClient.recognizeTrainTicket(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
VIN码识别
private static void vin(OcrClient ocrClient, String image) {
RecognizeVinRequest request = new RecognizeVinRequest();
VinRequestBody body = new VinRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeVinResponse response = ocrClient.recognizeVin(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
护照识别
private static void passport(OcrClient ocrClient, String image) {
RecognizePassportRequest request = new RecognizePassportRequest();
PassportRequestBody body = new PassportRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizePassportResponse response = ocrClient.recognizePassport(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
保险单识别
private static void insurancePolicy(OcrClient ocrClient, String image) {
RecognizeInsurancePolicyRequest request = new RecognizeInsurancePolicyRequest();
InsurancePolicyRequestBody body = new InsurancePolicyRequestBody();
body.withDetectDirection(true);
body.withImage(image);
request.withBody(body);
try {
RecognizeInsurancePolicyResponse response = ocrClient.recognizeInsurancePolicy(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
从业资格证识别
private static void qualificationCertificate(OcrClient ocrClient, String image) {
RecognizeQualificationCertificateRequest request = new RecognizeQualificationCertificateRequest();
QualificationCertificateRequestBody body = new QualificationCertificateRequestBody();
body.withImage(image);
request.withBody(body);
try {
RecognizeQualificationCertificateResponse response = ocrClient.recognizeQualificationCertificate(request);
System.out.println(response.toString());
} catch (ConnectionException | RequestTimeoutException e) {
LOGGER.error(e.toString());
} catch (ServiceResponseException e) {
LOGGER.error(String.valueOf(e.getHttpStatusCode()));
LOGGER.error(e.getErrorCode());
LOGGER.error(e.getErrorMsg());
}
}
5 体验馆
5.1 通用类
5.2 票据类
5.3 证件类
5.4 行业类
6 体验插件课程
https://classroom.devcloud.huaweicloud.cn/MOOCCourseStudy/join/ef4ebc3dbaa246ff995f75022cac8cb9
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