机动车销售发票识别
功能介绍
识别机动车销售发票、二手车销售发票图片中的文字内容,服务能自动分辨两种类型,并将识别的结果以JSON格式返回给用户。该接口的使用限制请参见约束与限制,详细使用指导请参见OCR服务使用简介章节。
如果图片中包含多张卡证票据,请调用智能分类识别服务。
约束与限制
- 支持识别PNG、JPG、JPEG、BMP、TIFF、PDF格式。
- 图像各边的像素大小在100px到8192px之间。
- 图像中识别区域有效占比超过80%,保证整张发票及其边缘包含在图像内。
- 支持图像中发票任意角度的水平旋转。
- 支持少量扭曲,扭曲后图像中的发票长宽比与实际发票相差不超过10%。
调用方法
请参见如何调用API。
前提条件
在使用之前,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/mvs-invoice
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 |
说明 |
---|---|---|---|
image |
否 |
String |
该参数与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100px,最长边不超过8192px。支持JPEG、JPG、PNG、BMP、TIFF、PDF格式。多页PDF仅识别第一页。 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 |
该参数与image二选一。图片的url路径,目前支持:
说明:
|
return_text_location |
否 |
Boolean |
如果为True,返回体中会包含text_location对象,内容是各字段的检测框四点坐标。 如果为False或者没有这个key,返回体中不包含text_location对象。 |
return_confidence |
否 |
Boolean |
如果为True,返回体中包含confidence对象,内容是各字段的置信度。 如果为False或者没有这个key,返回体中不包含confidence对象。 |
type |
否 |
String |
如果没有type字段则默认返回原机动车销售发票出参。 如果存在type字段但是不属于 auto、new或者used三个枚举值,API返回AIS.0101入参错误。 如果type为auto,API自动判断发票类型,并在返回参数中添加type出参以指明发票类型。 如果type为new,API在检测出的类型为机动车发票时返回原版机动车发票出参并添加type出参(机动车销售统一发票),不一致时报错AIS.0104图像质量差。 如果type为used,API在检测出的类型为二手车时返回二手车发票出参,并添加type出参(二手车销售统一发票),不一致时报错AIS.0104图像质量差。 |
响应参数
根据识别的结果,可能有不同的HTTP响应状态码(status code)。例如,200表示API调用成功,400表示调用失败,详细的状态码和响应参数说明如下。
状态码: 200
参数 |
参数类型 |
描述 |
---|---|---|
result |
MvsInvoiceResult object |
识别结果。 调用失败时不返回此字段。 |
参数 |
参数类型 |
描述 |
---|---|---|
code |
String |
发票代码。 |
number |
String |
发票号码。 |
machine_printed_code |
String |
机打代码。 |
machine_printed_number |
String |
机打号码。 |
issue_date |
String |
开票日期。 |
machine_number |
String |
机器编号。 |
buyer_name |
String |
购买方的名称、二手车买方单位/个人。 |
buyer_organization_number |
String |
购买方身份证号码/组织机构代码。 |
buyer_id |
String |
购买方纳税人识别号、二手车买方单位代码/身份证号。 |
buyer_address |
String |
二手车买方单位/个人住址,当请求参数"type"设置为"auto"或"used"时才返回。 |
buyer_phone |
String |
二手车买方单位/个人电话,当请求参数"type"设置为"auto"或"used"时才返回。 |
seller_name |
String |
销货单位名称、二手车卖方单位/个人。 |
seller_phone |
String |
销售方电话、二手车卖方电话。 |
seller_id |
String |
销售方纳税人识别号、二手车卖方单位代码/身份证号。 |
seller_account |
String |
销售方账号。 |
seller_address |
String |
销售方地址、二手车卖方单位/个人地址。 |
licence_plate_number |
String |
二手车车牌照号,当请求参数"type"设置为"auto"或"used"时才返回。 |
registration_number |
String |
二手车登记证号,当请求参数"type"设置为"auto"或"used"时才返回。 |
dept_motor_vehicles |
String |
二手车转入地车管所名称,当请求参数"type"设置为"auto"或"used"时才返回。 |
seller_bank |
String |
销售方开户行。 |
vehicle_type |
String |
车辆类型。 |
brand_model |
String |
厂牌型号。 |
manufacturing_location |
String |
产地。 |
quality_certificate |
String |
合格证号。 |
import_certificate |
String |
进口证明书号。 |
inspection_number |
String |
商检单号。 |
engine_number |
String |
发动机号码。 |
vehicle_identification_number |
String |
车辆识别代号/车架号码。 |
tonnage |
String |
吨位。 |
seating_capacity |
String |
限乘人数。 |
tax_authority |
String |
主管税务机关。 |
tax_authority_code |
String |
主管税务机关代码。 |
tax_payment_receipt |
String |
完税凭证号码。 |
tax_rate |
String |
增值税税率或征收率。 |
tax |
String |
增值税税额。 |
tax_exclusive_price |
String |
不含税价。 |
total |
String |
价税合计、二手车车价合计(小写)。 |
total_chinese |
String |
价税合计大写、二手车车价合计(大写)。 |
fiscal_code |
String |
税控码。 |
auction_org_name |
String |
二手车经营拍卖单位名称,当请求参数"type"设置为"auto"或"used"时才返回。 |
auction_org_address |
String |
二手车经营拍卖单位地址,当请求参数"type"设置为"auto"或"used"时才返回。 |
auction_org_id |
String |
二手车经营拍卖单位纳税人识别号,当请求参数"type"设置为"auto"或"used"时才返回。 |
auction_org_bank_account |
String |
二手车经营拍卖单位银行和账号,当请求参数"type"设置为"auto"或"used"时才返回。 |
auction_org_phone |
String |
二手车经营拍卖单位电话,当请求参数"type"设置为"auto"或"used"时才返回。 |
used_vehicle_market_name |
String |
二手车市场名称,当请求参数"type"设置为"auto"或"used"时才返回。 |
used_vehicle_market_id |
String |
二手车市场纳税人识别号,当请求参数"type"设置为"auto"或"used"时才返回。 |
used_vehicle_market_address |
String |
二手车市场地址,当请求参数"type"设置为"auto"或"used"时才返回。 |
used_vehicle_market_bank_account |
String |
二手车市场银行和账号,当请求参数"type"设置为"auto"或"used"时才返回。 |
used_vehicle_market_phone |
String |
二手车市场电话,当请求参数"type"设置为"auto"或"used"时才返回。 |
reverse_issue |
Boolean |
二手车反向开具标识,True表示是反向开具发票,False表示不是反向开具发票。 当请求参数"type"设置为"auto"或"used"时才返回。 |
remark |
String |
备注。 |
drawer_name |
String |
开票人。 |
type |
String |
枚举值,机动车销售统一发票或者二手车销售统一发票。 当入参中包含type时返回。 |
text_location |
Object |
检测框对象,内部为字段-框坐标对。如 code:[[x0, y0],[x1,y1],[x2,y2],[x3,y3]], 点的顺序是左上角、右上角、右下角、左下角。如果原图找不到字段,返回空列表。 |
confidence |
Object |
字段文字内容置信度,内容为字段-字符置信度对,如code:0.9999。这个数值为字段中每个字符置信度,格式为fp32,保留四位。若字段不存在则返回0.0。 |
状态码: 400
参数 |
参数类型 |
说明 |
---|---|---|
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
- 传入机动车销售发票图片的base64编码进行文字识别
POST https://{endpoint}/v2/{project_id}/ocr/mvs-invoice Request Header: Content-Type: application/json X-Auth-Token: MIINRwYJKoZIhvcNAQcCoIINODCCDTQCAQExDTALBglghkgBZQMEAgEwgguVBgkqhkiG... Request Body: { "image" : "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA...", "type" : "auto" }
- 传入机动车销售发票图片的url进行文字识别
POST https://{endpoint}/v2/{project_id}/ocr/mvs-invoice Request Header: Content-Type: application/json X-Auth-Token: MIINRwYJKoZIhvcNAQcCoIINODCCDTQCAQExDTALBglghkgBZQMEAgEwgguVBgkqhkiG... Request Body: { "url":"https://BucketName.obs.xxxx.com/ObjectName" }
响应示例
状态码:200
成功响应示例1
{ "result" : { "code" : "144031624150", "number" : "00446874", "machine_printed_code" : "144031624150", "machine_printed_number" : "00446874", "issue_date" : "2017-07-19", "machine_number" : "49991450XXXX", "buyer_name" : "深圳市宝安区XXX", "buyer_organization_number" : "XXX", "buyer_id" : "XXX", "seller_name" : "深圳市XXX服务有限公司", "seller_phone" : "0755-XXX", "seller_id" : "XXX", "seller_account" : "XXX", "seller_address" : "深圳市宝安区松岗街道办XXX", "seller_bank" : "建设银行深圳XX支行", "vehicle_type" : "多用途乘用车", "brand_model" : "东风日产牌/XXX", "manufacturing_location" : "大连市", "quality_certificate" : "XXX", "import_certificate" : "", "inspection_number" : "", "engine_number" : "XXX", "vehicle_identification_number" : "XXX", "tonnage" : "", "seating_capacity" : "5", "tax_authority" : "深圳市宝安区国家税务局XXX税务分局", "tax_authority_code" : "144030614", "tax_payment_receipt" : "", "tax_rate" : "17%", "tax" : "¥21475.21", "tax_exclusive_price" : "¥126324.79", "total" : "¥147800.00", "total_chinese" : "壹拾肆万柒仟捌佰圆整", "fiscal_code" : "" } }
成功响应示例2
{ "result" : { "used_vehicle_market_name" : "动车交易有限公司", "auction_org_bank_account" : "10468888888830", "seller_phone" : "13988888888", "buyer_id" : "AB37836SDWGDUOHDOEHD3", "machine_printed_number" : "00888858", "auction_org_id" : "AB37836SDWGDUOHDOEHD3", "auction_org_name" : "某拍卖行", "buyer_name" : "汽车贸易有限公司", "used_vehicle_market_id" : "91DEDD3782733DJ6R", "used_vehicle_market_phone" : "07588888888", "code" : "044008888817", "machine_number" : "4888888182", "used_vehicle_market_address" : "佛山市", "seller_address" : "广东省佛山市", "auction_org_address" : "广东省佛山市", "brand_model" : "吉利莫车型", "licence_plate_number" : "粤A88888", "seller_id" : "AB37836SDWGDUOHDOEHD3", "machine_printed_code" : "10468888888830", "registration_number" : "1234EHWEGG8888830", "buyer_phone" : "13988888888", "vehicle_type" : "小型轿车", "drawer_name" : "张三", "total" : "¥20000.00", "total_chinese" : "贰万圆整", "issue_date" : "1987-12-27", "seller_name" : "李四", "vehicle_identification_number" : "L6T7804826379E3GG875", "auction_org_phone" : "13988888888", "used_vehicle_market_bank_account" : "中国农业银行", "buyer_address" : "佛山市", "dept_motor_vehicles" : "广东省佛山市车管所", "remark" : "免税开具", "reverse_issue" : false, "number" : "003753534", "fiscal_code" : "017807816386738245", "type" : "二手车销售统一发票" } }
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。
- 传入机动车销售发票图片的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 RecognizeMvsInvoiceSolution { 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(); RecognizeMvsInvoiceRequest request = new RecognizeMvsInvoiceRequest(); MvsInvoiceRequestBody body = new MvsInvoiceRequestBody(); body.withType("auto"); body.withImage("/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..."); request.withBody(body); try { RecognizeMvsInvoiceResponse response = client.recognizeMvsInvoice(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()); } } }
- 传入机动车销售发票图片的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 RecognizeMvsInvoiceSolution { 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(); RecognizeMvsInvoiceRequest request = new RecognizeMvsInvoiceRequest(); MvsInvoiceRequestBody body = new MvsInvoiceRequestBody(); body.withUrl("https://BucketName.obs.myhuaweicloud.com/ObjectName"); request.withBody(body); try { RecognizeMvsInvoiceResponse response = client.recognizeMvsInvoice(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()); } } }
- 传入机动车销售发票图片的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 = RecognizeMvsInvoiceRequest() request.body = MvsInvoiceRequestBody( type="auto", image="/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..." ) 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)
- 传入机动车销售发票图片的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 = RecognizeMvsInvoiceRequest() request.body = MvsInvoiceRequestBody( url="https://BucketName.obs.myhuaweicloud.com/ObjectName" ) 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)
- 传入机动车销售发票图片的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.RecognizeMvsInvoiceRequest{} typeMvsInvoiceRequestBody:= "auto" imageMvsInvoiceRequestBody:= "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..." request.Body = &model.MvsInvoiceRequestBody{ Type: &typeMvsInvoiceRequestBody, Image: &imageMvsInvoiceRequestBody, } response, err := client.RecognizeMvsInvoice(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } }
- 传入机动车销售发票图片的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.RecognizeMvsInvoiceRequest{} urlMvsInvoiceRequestBody:= "https://BucketName.obs.myhuaweicloud.com/ObjectName" request.Body = &model.MvsInvoiceRequestBody{ Url: &urlMvsInvoiceRequestBody, } response, err := client.RecognizeMvsInvoice(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } }
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