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更新时间：2024-05-07 GMT+08:00

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承兑汇票识别

功能介绍

识别承兑汇票识别中的关键字段, 并以json格式返回结构化结果。

约束与限制

只支持中英文。
只支持识别PNG、JPG、JPEG、BMP、GIF、TIFF、WEBP、PCX、ICO、PSD格式的图片。
图像各边的像素大小在15px到8192px之间。
图像中识别区域有效占比超过80%，保证所有文字及其边缘包含在图像内。
不支持角度旋转的图片识别。
支持电子承兑汇票，对于拍照场景、复杂背景支持欠佳。
文字识别服务属于公有云服务，线上用户资源共享，如果需要多并发请求，请提前联系我们。

调用方法

请参见如何调用API。

前提条件

在使用承兑汇票识别之前，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/acceptance-bill

表1 路径参数
参数	是否必选	说明
endpoint	是	终端节点，即调用API的请求地址。不同服务不同区域的endpoint不同，您可以从终端节点中获取。例如，OCR服务在“华北-北京四”区域的“endpoint”为“ocr.cn-north-4.myhuaweicloud.com”。
project_id	是	项目ID，您可以从获取项目ID中获取。

请求参数

表2 请求Header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。
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。携带正确的ID，正常使用OCR服务，账单的企业项目会被分类到企业ID对应的企业项目中。携带格式正确但不存在的ID，正常使用OCR服务，账单的企业项目会显示对应不存在的企业项目ID。不携带ID或格式错误ID（包含特殊字符等），正常使用OCR服务，账单的企业项目会被分类到"default"中。

表3 请求Body参数
参数	是否必选	参数类型	描述
image	否	String	与url二选一。图像数据，base64编码，要求base64编码后大小不超过10M。图片最小边不小于15像素，最长边不超过8192像素。支持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，目前仅支持华为云上OBS提供的匿名公开授权访问的URL以及公网URL。说明：接口响应时间依赖于图片的下载时间，如果图片下载时间过长，会返回接口调用失败。请保证被检测图片所在的存储服务稳定可靠，推荐使用OBS服务存储图片数据。

响应参数

状态码： 200

表4 响应Body参数
参数	参数类型	描述
result	AcceptanceBillResult object	调用成功时表示调用结果。调用失败时无此字段。

表5 AcceptanceBillResult
参数	参数类型	描述
issue_date	String	出票日期。
due_date	String	汇票到期日。
bill_status	String	票据状态。
bill_number	String	票据号码。
issuer_full_name	String	出票人全称。
issuer_account	String	出票人账号。
issuer_bank_name	String	出票人开户银行。
issuer_bank_number	String	出票人开户行号。
payee_full_name	String	收款人全称。
payee_account	String	收款人账号。
payee_bank_name	String	收款人开户银行。
payee_bank_number	String	收款人开户行号。
issuance_guarantor_name	String	出票保证人名称。
issuance_guarantor_address	String	出票保证人地址。
issuance_guarantor_account	String	出票保证人账号。
issuance_guarantee_date	String	出票保证日期。
issuance_guarantor_bank_number	String	出票保证人开户行行号。
issuance_guarantor_bank_name	String	出票保证人开户行名称。
amount_in_words	String	大写票据金额。
amount_in_figures	String	小写票据金额。
acceptor_full_name	String	承兑人全称。
acceptor_account	String	承兑人账号。
acceptor_bank_number	String	承兑人开户行行号。
acceptor_bank_name	String	承兑人开户行名称。
contract_number	String	交易合同号。
assignability	String	能否转让。
issuer_commitment	String	出票人承诺。
acceptor_commitment	String	承兑人承诺。
acceptance_date	String	承兑日期。
acceptance_guarantor_name	String	承兑保证人名称。
acceptance_guarantor_address	String	承兑保证人地址。
acceptance_guarantor_account	String	承兑保证人账号。
acceptance_guarantee_date	String	承兑保证日期。
acceptance_guarantor_bank_number	String	承兑保证人开户行行号。
acceptance_guarantor_bank_name	String	承兑保证人开户行名称。
issuer_rating_entity	String	出票人评级主体。
issuer_credit_rating	String	出票人信用等级。
issuer_rating_due_date	String	出票人评级到期日。
acceptor_rating_entity	String	承兑人评级主体。
acceptor_credit_rating	String	承兑人信用等级。
acceptor_rating_due_date	String	承兑人评级到期日。
bill_package_number	String	票据包号。
remarks	String	备注。
confidence	Object	各个字段的置信度。

状态码： 400

表6 响应Body参数
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	调用失败时的错误信息。调用成功时无此字段。

请求示例

Endpoint即调用API的请求地址，不同服务不同区域的Endpoint不同，具体请参见终端节点。例如，承兑汇票识别服务部署在“华北-北京四”区域的“endpoint”为“ocr.cn-north-4.myhuaweicloud.com”，请求URL为“https://ocr.cn-north-4.myhuaweicloud.com/v2/{project_id}/ocr/acceptance-bill”，“project_id”为项目ID，获取方法请参见获取项目ID。
如何获取Token请参见认证鉴权。

传入承兑汇票图片的base64编码进行文字识别

POST https://{endpoint}/v2/{project_id}/ocr/acceptance-bill
Request Header:
Content-Type: application/json
X-Auth-Token: MIINRwYJKoZIhvcNAQcCoIINODCCDTQCAQExDTALBglghkgBZQMEAgEwgguVBgkqhkiG...
Request Body:
{
  "image" : "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..."
}

传入承兑汇票图片的url进行文字识别

POST https://{endpoint}/v2/{project_id}/ocr/acceptance-bill
Request Header:
Content-Type: application/json
X-Auth-Token: MIINRwYJKoZIhvcNAQcCoIINODCCDTQCAQExDTALBglghkgBZQMEAgEwgguVBgkqhkiG...
Request Body:
{
  "url" : "https://BucketName.obs.myhuaweicloud.com/ObjectName"
}

响应示例

状态码： 200

成功响应样例

{
  "result" : {
    "issue_date" : "20xx-07-10",
    "bill_status" : "背书待签收",
    "due_date" : "20xx-01-10",
    "bill_number" : "130212XXX",
    "issuer_account" : "811180XXX",
    "payee_account" : "793201XXX",
    "issuer_full_name" : "XX集团有限公司",
    "issuer_bank_name" : "XX银行股份有限公司XX支行",
    "issuer_bank_number" : "302121XXX",
    "payee_full_name" : "XX有限公司",
    "payee_bank_name" : "XX银行股份有限公司XX分行",
    "payee_bank_number" : "303124XXX",
    "amount_in_figures" : "￥XXX",
    "amount_in_words" : "XXX元整",
    "acceptor_bank_name" : "XX银行XX分行",
    "acceptor_full_name" : "XX银行XX分行",
    "acceptor_bank_number" : "302121XXX",
    "issuer_commitment" : "本汇票请予以承兑，到期无条件付款",
    "acceptor_commitment" : "本汇票已经承兑，到期无条件付款",
    "assignability" : "可再转让",
    "acceptance_date" : "20xx-07-10",
    "issuance_guarantor_name" : "xx",
    "issuance_guarantor_address" : "xx",
    "issuance_guarantor_account" : "xx",
    "issuance_guarantee_date" : "xx",
    "issuance_guarantor_bank_number" : "xx",
    "issuance_guarantor_bank_name" : "xx",
    "acceptor_account" : "xx",
    "contract_number" : "xx",
    "acceptance_guarantor_name" : "xx",
    "acceptance_guarantor_address" : "xx",
    "acceptance_guarantor_account" : "xx",
    "acceptance_guarantee_date" : "xx",
    "acceptance_guarantor_bank_number" : "xx",
    "acceptance_guarantor_bank_name" : "xx",
    "issuer_rating_entity" : "xx",
    "issuer_credit_rating" : "xx",
    "issuer_rating_due_date" : "xx",
    "acceptor_rating_entity" : "xx",
    "acceptor_credit_rating" : "xx",
    "acceptor_rating_due_date" : "xx",
    "remarks" : "xxx",
    "bill_package_number" : "xx",
    "confidence" : {
      "issue_date" : 0.9998,
      "bill_status" : 0.9997,
      "due_date" : 0.9999,
      "bill_number" : 1.0,
      "issuer_account" : 1.0,
      "payee_account" : 1.0,
      "issuer_full_name" : 1.0,
      "issuer_bank_name" : 0.9999,
      "issuer_bank_number" : 0.999,
      "payee_full_name" : 1.0,
      "payee_bank_name" : 0.9999,
      "payee_bank_number" : 0.9999,
      "amount_in_figures" : 0.9999,
      "amount_in_words" : 0.9998,
      "acceptor_account" : 0.0,
      "acceptor_bank_name" : 0.9997,
      "acceptor_full_name" : 0.9999,
      "acceptor_bank_number" : 0.9998,
      "issuer_commitment" : 0.9998,
      "acceptor_commitment" : 1.0,
      "assignability" : 1.0,
      "acceptance_date" : 1.0,
      "issuance_guarantor_name" : 0.0,
      "issuance_guarantor_address" : 0.0,
      "issuance_guarantor_account" : 0.0,
      "issuance_guarantee_date" : 0.0,
      "issuance_guarantor_bank_number" : 0.0,
      "issuance_guarantor_bank_name" : 0.0,
      "contract_number" : 0.0,
      "acceptance_guarantor_name" : 0.0,
      "acceptance_guarantor_address" : 0.0,
      "acceptance_guarantor_account" : 0.0,
      "acceptance_guarantee_date" : 0.0,
      "acceptance_guarantor_bank_number" : 0.0,
      "acceptance_guarantor_bank_name" : 0.0,
      "issuer_rating_entity" : 0.0,
      "issuer_credit_rating" : 0.0,
      "issuer_rating_due_date" : 0.0,
      "acceptor_rating_entity" : 0.0,
      "acceptor_credit_rating" : 0.0,
      "acceptor_rating_due_date" : 0.0,
      "remarks" : 0.0,
      "bill_package_number" : 0.0
    }
  }
}

状态码： 400

失败响应样例

{
  "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。

传入承兑汇票图片的base64编码进行文字识别

        
         
           
           
             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 RecognizeAcceptanceBillSolution {

    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();
        RecognizeAcceptanceBillRequest request = new RecognizeAcceptanceBillRequest();
        AcceptanceBillRequestBody body = new AcceptanceBillRequestBody();
        body.withImage("/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA...");
        request.withBody(body);
        try {
            RecognizeAcceptanceBillResponse response = client.recognizeAcceptanceBill(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());
        }
    }
}

            

          

        
       

传入承兑汇票图片的url进行文字识别

        
         
           
           
             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 RecognizeAcceptanceBillSolution {

    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();
        RecognizeAcceptanceBillRequest request = new RecognizeAcceptanceBillRequest();
        AcceptanceBillRequestBody body = new AcceptanceBillRequestBody();
        body.withUrl("https://BucketName.obs.myhuaweicloud.com/ObjectName");
        request.withBody(body);
        try {
            RecognizeAcceptanceBillResponse response = client.recognizeAcceptanceBill(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());
        }
    }
}

            

          

        
       

传入承兑汇票图片的base64编码进行文字识别

        
         
           
           
             # 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 = RecognizeAcceptanceBillRequest()
        request.body = AcceptanceBillRequestBody(
            image="/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..."
        )
        response = client.recognize_acceptance_bill(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

            

          

        
       

传入承兑汇票图片的url进行文字识别

        
         
           
           
             # 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 = RecognizeAcceptanceBillRequest()
        request.body = AcceptanceBillRequestBody(
            url="https://BucketName.obs.myhuaweicloud.com/ObjectName"
        )
        response = client.recognize_acceptance_bill(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

            

          

        
       

传入承兑汇票图片的base64编码进行文字识别

        
         
           
           
             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.RecognizeAcceptanceBillRequest{}
	imageAcceptanceBillRequestBody:= "/9j/4AAQSkZJRgABAgEASABIAAD/4RFZRXhpZgAATU0AKgAAAA..."
	request.Body = &model.AcceptanceBillRequestBody{
		Image: &imageAcceptanceBillRequestBody,
	}
	response, err := client.RecognizeAcceptanceBill(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

            

          

        
       

传入承兑汇票图片的url进行文字识别

        
         
           
           
             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.RecognizeAcceptanceBillRequest{}
	urlAcceptanceBillRequestBody:= "https://BucketName.obs.myhuaweicloud.com/ObjectName"
	request.Body = &model.AcceptanceBillRequestBody{
		Url: &urlAcceptanceBillRequestBody,
	}
	response, err := client.RecognizeAcceptanceBill(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。

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