文档首页/ 数据安全中心 DSC/ API参考/ API/ 图片水印/ 按地址提取图片水印 - ShowImageWatermarkByAddress
更新时间:2026-10-20 GMT+08:00
分享

按地址提取图片水印 - ShowImageWatermarkByAddress

功能介绍

  • 功能介绍:从OBS地址中的图片提取暗水印。

调用方法

请参见如何调用API。

授权信息

账号具备所有API的调用权限,如果使用账号下的IAM用户调用当前API,该IAM用户需具备调用API所需的权限。

  • 如果使用角色与策略授权,具体权限要求请参见权限和授权项。
  • 如果使用身份策略授权,当前API调用无需身份策略权限。

URI

POST /v1/{project_id}/image-address/watermark/extract

表1 路径参数

参数

是否必选

参数类型

描述

project_id

是

String

参数解释:

项目ID,用于标识用户所属的项目,实现权限控制和资源隔离。获取方法请参见获取项目ID和名称。

约束限制:

不涉及

取值范围:

长度为32个字符

默认取值:

不涉及

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

参数解释:

用户Token。通过调用IAM服务查询用户Token接口获取(响应消息头中X-Subject-Token的值)。

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

表3 请求Body参数

参数

是否必选

参数类型

描述

region_id

是

String

参数解释:

区域ID,用于指定文件所在OBS服务的区域。获取方法请参见获取区域列表。

约束限制:

必填

取值范围:

格式为xx-xx-1,由小写字母、数字和连字符组成,长度1~64个字符

默认取值:

不涉及

src_file

是

String

参数解释:

源图片地址,待处理图片文件在OBS上的存储路径

约束限制:

必填

取值范围:

格式为obs://bucket-name/object-key,字符串长度1~2048个字符

默认取值:

不涉及

mark_len

否

Integer

参数解释:

水印长度,即需要提取的水印内容的最大长度

约束限制:

不涉及

取值范围:

0~32

默认取值:

-1

src_bucket_credential

否

Credential object

参数解释:

源桶临时凭证

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

dst_watermark_credential

否

Credential object

参数解释:

目标水印桶临时凭证

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

表4 Credential

参数

是否必选

参数类型

描述

expires_at

否

String

参数解释:

临时凭证过期时间

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

access

否

String

参数解释:

访问密钥

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

secret

否

String

参数解释:

秘密访问密钥

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

securitytoken

否

String

参数解释:

安全令牌

约束限制:

不涉及

取值范围:

不涉及

默认取值:

不涉及

响应参数

状态码:200

表5 响应Body参数

参数

参数类型

描述

watermark

String

参数解释:

提取的暗水印内容

取值范围:

不涉及

请求示例

从OBS地址中的图片提取暗水印。

{
  "region_id" : "cn-north-4",
  "src_file" : "obs://bucket/src.png",
  "mark_len" : 32
}

响应示例

状态码:200

{
  "watermark" : "blind-demo"
}

SDK代码示例

SDK代码示例如下。

Java

从OBS地址中的图片提取暗水印。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
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.dsc.v1.region.DscRegion;
import com.huaweicloud.sdk.dsc.v1.*;
import com.huaweicloud.sdk.dsc.v1.model.*;


public class ShowImageWatermarkByAddressSolution {

    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");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        DscClient client = DscClient.newBuilder()
                .withCredential(auth)
                .withRegion(DscRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowImageWatermarkByAddressRequest request = new ShowImageWatermarkByAddressRequest();
        ShowImageWatermarkByAddressRequestBody body = new ShowImageWatermarkByAddressRequestBody();
        body.withMarkLen(32);
        body.withSrcFile("obs://bucket/src.png");
        body.withRegionId("cn-north-4");
        request.withBody(body);
        try {
            ShowImageWatermarkByAddressResponse response = client.showImageWatermarkByAddress(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());
        }
    }
}

Python

从OBS地址中的图片提取暗水印。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdsc.v1.region.dsc_region import DscRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdsc.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.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = DscClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DscRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowImageWatermarkByAddressRequest()
        request.body = ShowImageWatermarkByAddressRequestBody(
            mark_len=32,
            src_file="obs://bucket/src.png",
            region_id="cn-north-4"
        )
        response = client.show_image_watermark_by_address(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Go

从OBS地址中的图片提取暗水印。

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dsc "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dsc/v1"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dsc/v1/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dsc/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")
    projectId := "{project_id}"

    auth, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := dsc.DscClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := dsc.NewDscClient(hcClient)

    request := &model.ShowImageWatermarkByAddressRequest{}
	markLenShowImageWatermarkByAddressRequestBody:= int32(32)
	request.Body = &model.ShowImageWatermarkByAddressRequestBody{
		MarkLen: &markLenShowImageWatermarkByAddressRequestBody,
		SrcFile: "obs://bucket/src.png",
		RegionId: "cn-north-4",
	}
	response, err := client.ShowImageWatermarkByAddress(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

更多

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

请求已成功

错误码

请参见错误码。

相关文档