Data Security Center
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API Reference
- Before You Start
- Calling APIs
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API Description
- Data Watermarking
- Resource Management
- Dynamic Data Masking
- Alarm Notifications
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Image Watermarking
- Injecting Invisible Watermarks into Images
- Extracting Invisible Text Watermarks
- Extracting Invisible Watermarks from Images
- Injecting Invisible Watermarks into Images (Image Addresses)
- Extracting Dark Watermarks from Images (Image Addresses)
- Extracting Invisible Image Watermarks from Images (Image Addresses)
- Asset Management
- Document Watermarking
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Sensitive Data Discovery
- Querying the Identification Task List
- Querying the Result of an Identification Task
- Viewing the Rule List
- Creating a Sensitive Data Scanning Rule
- Modifying a Sensitive Data Scanning Rule
- Deleting a Sensitive Data Scanning Rule
- Querying Sensitive Data Scanning Rule Groups
- Creating a Sensitive Data Scanning Rule Group
- Deleting a Sensitive Data Scanning Rule Group
- Creating a Sensitive Data Scanning Task
- Deleting a Sensitive Data Scanning Task
- Static Data Masking
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FAQs
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Sensitive Data Identification and Masking
- What Services Can Use DSC to Scan for Sensitive Data?
- How Long Does It Take for DSC to Identify and Mask Sensitive Data?
- What Are the Built-in Identification Rules of DSC?
- What Are the Identification Rules in the Built-in Identification Template of DSC?
- Does Data Masking Affect My Raw Data?
- Does DSC Have Specific Requirements on the Character Set for Which Sensitive Data Is to Be Identified and Masked?
- Why Cannot I Find a Table in an Existing Database When Creating a Database Data Masking Task?
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More Documents
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User Guide (ME-Abu Dhabi Region)
- Service Overview
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- Overview
- Sensitive Data Identification
- Data Masking
- Data Watermarking
- Alarm Notifications
- Permissions Management
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FAQs
- Product Consulting
- Adding Data Assets
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Sensitive Data Identification and Masking
- What Services Can Use DSC to Scan for Sensitive Data?
- How Long Does It Take for DSC to Identify and Mask Sensitive Data?
- Which Types of Sensitive Data Can Be Identified by DSC?
- Does Data Masking Affect My Raw Data?
- Does DSC Have Specific Requirements on the Character Set for Which Sensitive Data Is to Be Identified and Masked?
- How Do I Add Multiple Identification Rule Groups?
- Data Watermarking
- Change History
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API Reference (ME-Abu Dhabi Region)
- Before You Start
- Calling APIs
-
API Description
- Data Watermarking
- Resource Management
- Dynamic Data Masking
- Alarm Notifications
-
Image Watermarking
- Injecting Invisible Watermarks into Images
- Extracting Invisible Text Watermarks
- Extracting Invisible Watermarks from Images
- Injecting Invisible Watermarks into Images (Image Addresses)
- Extracting Dark Watermarks from Images (Image Addresses)
- Extracting Invisible Image Watermarks from Images (Image Addresses)
- Asset Management
- Document Watermarking
-
Sensitive Data Discovery
- Querying the Identification Task List
- Querying the Result of an Identification Task
- Viewing the Rule List
- Creating a Sensitive Data Scanning Rule
- Modifying a Sensitive Data Scanning Rule
- Deleting a Sensitive Data Scanning Rule
- Querying Sensitive Data Scanning Rule Groups
- Creating a Sensitive Data Scanning Rule Group
- Deleting a Sensitive Data Scanning Rule Group
- Creating a Sensitive Data Scanning Task
- Querying the Database Lineage Graph
- Querying the Table Lineage Graph in Pages
- Querying Data Linage Graph at the Column Level
- Querying the OBS Bucket Lineage Graph
- Querying the OBS File Linage Graph in Pages
- Static Data Masking
- API Call Records
- Appendixes
- Change History
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User Guide (ME-Abu Dhabi Region)
- General Reference
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Data Watermarking/
Extracting Watermarks/
Extracting Watermarks from Images
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Extracting Watermarks from Images
The content of an invisible watermark remains unseen until it is retrieved through a specialized watermark extraction tool. The DSC console facilitates this process by offering a watermark extraction feature for images. Detailed instructions on how to extract watermarks from files stored in OBS buckets or from local files are provided in this section.
Prerequisites
- OBS asset access permissions are granted. For details, see Allowing or Disallowing Access to Cloud Assets.
- You have enabled and created assets on OBS. For details about how to enable OBS, see Enabling and Using OBS Buckets..
- Currently, the following image format is supported: .jpg, .jpeg, .jpe, .png, .bmp, .dib, .rle, .tiff, .tif, .ppm, .webp, .tga, .tpic, .gif.
- The resolution of the original image must be greater than 128 x 128 pixels.
Constraints
- Extract invisible watermarks from a single image file.
- The maximum size of an image is 20 MB.
- The invisible watermark content contains a maximum of 32 bytes.
Extracting Watermarks from an OBS Bucket File
- Log in to the management console.
- Click
in the upper left corner and select a region or project.
- In the navigation tree on the left, click
. Choose Security & Compliance > Data Security Center .
- In the navigation tree on the left, choose Data Asset Protection > Document Watermarking. On the displayed page, click the OBS File tab.
- Click the Watermark Extraction tab. The Watermark Extraction page is displayed.
- Select the content to be extracted.
- If Extract Content is set to Text, click Add to select the image from which the watermark is to be extracted.
Figure 1 Extracting text content
- If Extract Content is set to Image:
- Click Add next to Select File and select the image from which you want to extract watermarks.
- Click Add next to Storage Destination Path and select the path for storing the extracted watermark image.
- Click Save Target File Name and enter the file name of the watermark image to be extracted.
Figure 2 Extracting image content
- If Extract Content is set to Text, click Add to select the image from which the watermark is to be extracted.
- Click OK. If the Extract Content is Text, the invisible watermark content is displayed in the dialog box. If the Extract Content is Image, view the image in the target storage path.
Extracting Watermarks from a Local File
- Log in to the management console.
- Click
in the upper left corner and select a region or project.
- In the navigation tree on the left, click
. Choose Security & Compliance > Data Security Center .
- In the navigation tree on the left, choose Data Asset Protection > Document Watermarking. On the displayed page, click the OBS File tab.
- On the displayed page, choose Local > Extract Watermark. The Extract Watermark page is displayed.
- Select the Extract Content.
- If the Extract Content is Text, click Upload File to upload the local image whose invisible watermark needs to be extracted to the DSC platform.
- If the Extract Content is Image, click Upload File to upload the image whose invisible watermark needs to be extracted from the local host to the DSC platform.
- After the file is uploaded, click OK. The invisible watermark content is displayed in the dialog box.
Parent Topic: Extracting Watermarks
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