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    Intelligent Media Management:CreateDecodeBlindWatermarkTask

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    Intelligent Media Management:CreateDecodeBlindWatermarkTask

    Last Updated:Dec 11, 2024

    Decodes the blind watermark in an image.

    Operation description

    • Before you call this operation, make sure that you are familiar with the billing of Intelligent Media Management (IMM).
    • Make sure that an IMM project is created. For information about how to create a project, see CreateProject .
    • A blind watermark can still be extracted even if attacks, such as compression, scaling, cropping, rotation, and color transformation, are performed on the image.
    • This operation is an asynchronous operation. After a task is executed, the task information is saved only for seven days. When the retention period ends, the task information can no longer be retrieved. You can call the GetTask or ListTasks operation to query information about the task. If you specify Notification , you can obtain information about the task based on notifications.

    Debugging

    You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • Access level: the access level of each operation. The levels are read, write, and list.
    • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
      • The required resource types are displayed in bold characters.
      • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
    • Condition Key: the condition key that is defined by the cloud service.
    • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
    OperationAccess levelResource typeCondition keyAssociated operation
    imm:CreateDecodeBlindWatermarkTaskcreate
    *Project
    acs:imm:{#regionId}:{#accountId}:project/{#ProjectName}
      none
    		none

    Request parameters

    ParameterTypeRequiredDescriptionExample
    ProjectNamestringYes

    The name of the project.

    		immtest
    SourceURIstringYes

    The OSS URI of the image.

    Specify the OSS URI in the oss://<bucket>/<object> format, where <bucket> is the name of the bucket in the same region as the current project and <object> is the path of the object with the extension included.

    		oss://target/sampleobject.jpg
    StrengthLevelstringNo

    The watermark strength level. The higher the strength level, the more resistant the watermarked image is to attacks, but the more the image is distorted. Valid values: low, medium, and high. Default value: low.

    		low
    WatermarkTypestringNo

    The type of the watermark. Valid value: text.

    No image watermarks are supported.

    		text
    TargetURIstringNo

    The OSS URI of the output image. Specify the OSS URI in the oss://<bucket>/<object> format, where <bucket> is the name of the bucket in the same region as the current project and <object> is the path of the object with the extension included.

    		oss://target/targetobject.jpg
    ImageQualityintegerNo

    The quality of the output image. The higher the quality, the larger the image size and the higher the watermark resolution quality.

    		90
    ModelstringNo

    The watermark algorithm model.Valid values: FFT, FFT_FULL, DWT, and DWT_IBG. Default value: FFT.

    If this parameter is left empty, the DecodeBlindWatermark operation is called. Otherwise, the CreateDecodeBlindWatermarkTask operation is called.

    		FFT
    OriginalImageURIstringNo

    The OSS URI of the image before the blind watermark is added.

    Do not specify this parameter when you set the Model parameter to DWT or DWT_IBG.

    Specify the OSS URI in the oss://<bucket>/<object> format, where <bucket> is the name of the bucket in the same region as the current project and <object> is the path of the object with the extension included.

    		oss://imm-test/testcases/watermarktestbefore.jpg
    NotificationNotificationNo

    The notification settings. For information about the asynchronous notification format, see Asynchronous message examples.

    Response parameters

    ParameterTypeDescriptionExample
    object

    Schema of Response

    RequestIdstring

    The request ID.

    		4A7A2D0E-D8B8-4DA0-8127-EB32C6600ADE
    EventIdstring

    The event ID.

    		27C-1jyAP5qQI7RoI8lFFwvMrWtl0ft
    TaskIdstring

    The task ID.

    		DecodeBlindWatermark-78ac8f3b-59e0-45a6-9b67-32168c3f22b9

    Examples

    Sample success responses

    JSONformat

    {
  "RequestId": "4A7A2D0E-D8B8-4DA0-8127-EB32C6600ADE",
  "EventId": "27C-1jyAP5qQI7RoI8lFFwvMrWtl0ft",
  "TaskId": "DecodeBlindWatermark-78ac8f3b-59e0-45a6-9b67-32168c3f22b9"
}

    Error codes

    For a list of error codes, visit the Service error codes.

    Change history

    Change timeSummary of changesOperation
    No change history