越南身份证识别
约束与限制
- 只支持越南身份证的识别。
- 只支持识别PNG、JPG、JPEG、BMP、TIFF格式的图片。
- 图像各边的像素大小在15到8192px之间。
- 支持图像中越南身份证任意角度的水平旋转。
- 能处理反光、暗光、防伪标识等干扰的图片但影响识别精度。
调用方法
请参见如何调用API。
前提条件
在使用越南身份证识别之前,需要您完成服务申请和认证鉴权,具体操作流程请参见开通服务和认证鉴权章节。
用户首次使用需要先申请开通。服务只需要开通一次即可,后面使用时无需再次申请。如未开通服务,调用服务时会提示ModelArts.4204报错,请在调用服务前先进入控制台开通服务,并注意开通服务区域与调用服务的区域保持一致。
URI
POST /v2/{project_id}/ocr/vietnam-id-card
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
X-Auth-Token |
是 |
String |
用户Token。 用于获取操作API的权限。获取Token接口响应消息头中X-Subject-Token的值即为Token。 |
Content-Type |
是 |
String |
发送的实体的MIME类型,参数值为“application/json”。 |
Enterprise-Project-Id |
否 |
String |
企业项目ID。OCR支持通过企业项目管理(EPS)对不同用户组和用户的资源使用,进行分账。 获取方法:进入“企业项目管理”页面,单击企业项目名称,在企业项目详情页获取Enterprise-Project-Id(企业项目ID)。
企业项目创建步骤请参见用户指南。
说明:
创建企业项目后,在传参时,有以下三类场景。
|
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
image |
否 |
String |
与url二选一。 图片的Base64编码,要求Base64编码后大小不超过10MB。 图片最短边不小于15px,最长边不超过8192px,支持JPEG、JPG、PNG、BMP、TIFF格式。 图片Base64编码示例如/9j/4AAQSkZJRgABAg...,带有多余前缀会产生The image format is not supported报错。 |
url |
否 |
String |
与image二选一。 图片的url路径,目前支持:
说明:
|
side |
否 |
String |
证件图片正反面信息。可选值包括:
如果参数值为空或无该参数,系统自动识别,建议填写,准确率更高。 |
return_portrait_image |
否 |
Boolean |
是否返回头像内容开关,可选值如下所示:
未传入该参数时默认为“false”,即不返回身份证头像照片的 base64 编码。 |
return_portrait_location |
否 |
Boolean |
是否返回头像坐标的开关,可选值如下所示:
|
return_idcard_type |
否 |
Boolean |
是否返回身份证拍摄类型的开关,可选值如下所示:
|
return_text_location |
否 |
Boolean |
识别到的文字块的区域位置信息。可选值包括:
如果无该参数,系统默认不返回文字块区域。如果输入参数不是Boolean类型,则会报非法参数错误。 |
响应参数
状态码: 200
参数 |
参数类型 |
描述 |
---|---|---|
result |
表5 object |
调用结果。 调用失败时不返回此字段。 |
参数 |
参数类型 |
描述 |
---|---|---|
side |
String |
返回证件正反面。字段值为“front”或“back” |
number |
String |
卡证编号。 |
full_name |
String |
姓名。 |
birth_date |
String |
出生日期。 |
sex |
String |
性别。 |
nationality |
String |
国籍。 |
origin_place |
String |
籍贯。 |
residence_place |
String |
居住地。 |
expiry_date |
String |
有效日期。 |
personal_identification |
String |
个人识别。当参数“side”为back时,返回此字段。 |
issue_date |
String |
签发日期。当参数“side”为back时,返回此字段。 |
machine_code1 |
String |
身份证背面第一行机器码。当参数“side”为back时,返回此字段。 |
machine_code2 |
String |
身份证背面第二行机器码。当参数“side”为back时,返回此字段。 |
machine_code3 |
String |
身份证背面第三行机器码。当参数“side”为back时,返回此字段。 |
confidence |
Object |
相关字段的置信度信息,置信度越大,表示本次识别的对应字段的可靠性越高,在统计意义上,置信度越大,准确率越高。注:置信度由算法给出,不直接等价于对应字段的准确率。 |
portrait_image |
String |
当参数return_portrait_image为true时,返回头像的base64编码。 |
portrait_location |
Array<Array<Integer>> |
当参数return_portrait_location为true时,返回头像在原图上的位置,以列表形式表示,包含头像区域四个顶点的二维坐标(x,y);坐标原点为图片左上角,x轴沿水平方向,y轴沿竖直方向。 |
idcard_type |
String |
输入参数return_idcard_type为true时,返回身份证的类型:normal是身份证原件,copy是复印的身份证,screen是屏幕翻拍。 |
text_location |
Object |
对应所有在原图上识别到的字段位置信息,包含所有文字区域四个顶点的二维坐标(x,y)。采用图像坐标系,坐标原点为图片左上角,x轴沿水平方向,y轴沿竖直方向。 |
状态码: 400
参数 |
参数类型 |
描述 |
---|---|---|
error_code |
String |
调用失败时的错误码,具体请参见错误码。 调用成功时不返回此字段。 |
error_msg |
String |
调用失败时返回的错误信息。 调用成功时不返回此字段。 |
请求示例
POST https://{endpoint}/v2/{project_id}/ocr/vietnam-id-card { "image" : "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..." }
响应示例
状态码: 200
成功响应示例
{ "result" : { "side" : "front", "number" : "784-1995-xxxxxxx-4", "full_name" : "VŨ THỊ HẢI YẾN", "birth_date" : "08-08-1980", "sex" : "Nữ", "nationality" : "Việt Nam", "origin_place" : "Giới Phiên Thành phố Yên Bái Yên Bải", "residence_place" : "Thôn Ngòi Châu Giới Phiên Thành phố Yên Bái Yên Bái", "expiry_date" : "08/07/2030", "confidence" : { "number" : 0.9993, "full_name" : 0.9983, "birth_date" : 0.9998, "sex" : 0.9999, "nationality" : 0.9999, "origin_place" : 0.9855, "residence_place" : 0.9984, "expiry_date" : 0.9995 }, "idcard_type" : "normal", "portrait_image" : "/9j/4AAQSkZJRgABAQAAAQABAA...", "portrait_location" : [ [ 217, 359 ], [ 582, 360 ], [ 573, 882 ], [ 199, 885 ] ] } }
状态码: 400
失败响应示例
{ "error_code" : "AIS.0103", "error_msg" : "The image size does not meet the requirements." }
SDK代码示例
SDK代码示例如下。
使用SDK前建议将SDK更新至最新版,防止本地旧版SDK无法使用最新的OCR功能。
- 传入越南身份证图片的base64编码进行文字识别
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package com.huaweicloud.sdk.test; 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.*; public class RecognizeVietnamIdCardSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); OcrClient client = OcrClient.newBuilder() .withCredential(auth) .withRegion(OcrRegion.valueOf("<YOUR REGION>")) .build(); RecognizeVietnamIdCardRequest request = new RecognizeVietnamIdCardRequest(); VietnamIdCardRequestBody body = new VietnamIdCardRequestBody(); body.withImage("/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..."); request.withBody(body); try { RecognizeVietnamIdCardResponse response = client.recognizeVietnamIdCard(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } }
- 传入越南身份证图片的url进行文字识别
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package com.huaweicloud.sdk.test; 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.*; public class RecognizeVietnamIdCardSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); OcrClient client = OcrClient.newBuilder() .withCredential(auth) .withRegion(OcrRegion.valueOf("<YOUR REGION>")) .build(); RecognizeVietnamIdCardRequest request = new RecognizeVietnamIdCardRequest(); VietnamIdCardRequestBody body = new VietnamIdCardRequestBody(); body.withUrl("https://BucketName.obs.myhuaweicloud.com/ObjectName"); request.withBody(body); try { RecognizeVietnamIdCardResponse response = client.recognizeVietnamIdCard(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } }
- 传入越南身份证图片的base64编码进行文字识别
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# coding: utf-8 from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkocr.v1.region.ocr_region import OcrRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkocr.v1 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak, sk) \ client = OcrClient.new_builder() \ .with_credentials(credentials) \ .with_region(OcrRegion.value_of("<YOUR REGION>")) \ .build() try: request = RecognizeVietnamIdCardRequest() request.body = VietnamIdCardRequestBody( image="/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..." ) response = client.recognize_vietnam_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)
- 传入越南身份证图片的url进行文字识别
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# coding: utf-8 from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkocr.v1.region.ocr_region import OcrRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkocr.v1 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak, sk) \ client = OcrClient.new_builder() \ .with_credentials(credentials) \ .with_region(OcrRegion.value_of("<YOUR REGION>")) \ .build() try: request = RecognizeVietnamIdCardRequest() request.body = VietnamIdCardRequestBody( url="https://BucketName.obs.myhuaweicloud.com/ObjectName" ) response = client.recognize_vietnam_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)
- 传入越南身份证图片的base64编码进行文字识别
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package main 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" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := ocr.NewOcrClient( ocr.OcrClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.RecognizeVietnamIdCardRequest{} imageVietnamIdCardRequestBody:= "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..." request.Body = &model.VietnamIdCardRequestBody{ Image: &imageVietnamIdCardRequestBody, } response, err := client.RecognizeVietnamIdCard(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } }
- 传入越南身份证图片的url进行文字识别
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package main 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" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := ocr.NewOcrClient( ocr.OcrClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.RecognizeVietnamIdCardRequest{} urlVietnamIdCardRequestBody:= "https://BucketName.obs.myhuaweicloud.com/ObjectName" request.Body = &model.VietnamIdCardRequestBody{ Url: &urlVietnamIdCardRequestBody, } response, err := client.RecognizeVietnamIdCard(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } }
更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。
状态码
状态码 |
描述 |
---|---|
200 |
成功响应示例 |
400 |
失败响应示例 |
状态码请参见状态码。
错误码
错误码请参见错误码。