提取图片中的文字暗水印
功能介绍
对已嵌入文字暗水印的图片进行水印提取,用户以formData的格式传入待提取水印的图片,DSC服务以JSON的格式返回从图片里提取的出的文字暗水印。目前支持的图片格式为:*.jpg, *.jpeg, *.jpe, *.png, *.bmp, *.dib, *.rle, *.tiff, *.tif, *.ppm, *.webp, *.tga, *.tpic, *.gif。
调用方法
请参见如何调用API。
URI
POST /v1/{project_id}/image/watermark/extract
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
项目ID |
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
X-Auth-Token |
是 |
String |
用户Token。通过调用IAM服务“获取用户Token接口”获取(响应消息头中X-Subject-Token的值) |
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
file |
是 |
File |
待提取暗水印的图片文件。 |
mark_len |
否 |
String |
指定待提取水印的长度,mark_len长度大于0,小于32。设置后可以提升水印提取性能 |
响应参数
状态码: 200
参数 |
参数类型 |
描述 |
---|---|---|
watermark |
String |
暗水印内容,长度不超过32个字节 |
状态码: 400
参数 |
参数类型 |
描述 |
---|---|---|
error_code |
String |
错误码 |
error_msg |
String |
错误信息 |
请求示例
提取test.PNG图片中的文字暗水印。
通过form表单提交,file为具体文件。
POST /v1/{project_id}/image/watermark/extract HTTP/1.1 { "file" : "test.PNG" }
响应示例
状态码: 200
请求成功
{ "watermark" : "mark!" }
状态码: 400
无效请求
{ "error_code" : "DSC.00000007 ", "error_msg" : "File format error" }
SDK代码示例
SDK代码示例如下。
提取test.PNG图片中的文字暗水印。
通过form表单提交,file为具体文件。
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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.dsc.v1.region.DscRegion; import com.huaweicloud.sdk.dsc.v1.*; import com.huaweicloud.sdk.dsc.v1.model.*; public class ShowImageWatermarkSolution { 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); DscClient client = DscClient.newBuilder() .withCredential(auth) .withRegion(DscRegion.valueOf("<YOUR REGION>")) .build(); ShowImageWatermarkRequest request = new ShowImageWatermarkRequest(); ShowImageWatermarkRequestBody bodybody = new ShowImageWatermarkRequestBody(); bodybody.withFile("test.PNG"); body.withBody(bodybody); request.withBody(listbodyBody); try { ShowImageWatermarkResponse response = client.showImageWatermark(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()); } } } |
提取test.PNG图片中的文字暗水印。
通过form表单提交,file为具体文件。
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# 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"] credentials = BasicCredentials(ak, sk) client = DscClient.new_builder() \ .with_credentials(credentials) \ .with_region(DscRegion.value_of("<YOUR REGION>")) \ .build() try: request = ShowImageWatermarkRequest() bodybody = ShowImageWatermarkRequestBody( file="test.PNG" ) request.body = listBodybody response = client.show_image_watermark(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
提取test.PNG图片中的文字暗水印。
通过form表单提交,file为具体文件。
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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") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := dsc.NewDscClient( dsc.DscClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ShowImageWatermarkRequest{} bodybody := &model.ShowImageWatermarkRequestBody{ File: "test.PNG", } request.Body = listBodybody response, err := client.ShowImageWatermark(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 |
请求成功 |
400 |
无效请求 |
错误码
请参见错误码。