ListObjectClassAnnotations

Lists the annotations that you have added to your training images. An annotation identifies a region of a training image that contains an object, and the class that the object belongs to. Media Server can then use that region of the image to train the recognizer.

Type: synchronous

Parameter Description Required
recognizer The name of the recognizer to list annotations for. Yes
imagelabels A comma-separated list of image labels to list the annotations for. Set this parameter to list annotations only for selected images. No
identifiers A comma-separated list of object class identifiers to list the annotations for. Set this parameter to list annotations only for selected object classes. No

Example

The following example lists all annotations for the vehicles recognizer.

/action=ListObjectClassAnnotations&recognizer=vehicles

This action can return a significant amount of data, so you might use the imagelabels parameter to return the annotations for a single image:

/action=ListObjectClassAnnotations&recognizer=vehicles&imagelabels=image1

Response

The following XML is an example response that shows the annotations for a single image. There are two annotations. The first identifies a region to use to train the car object class and the second identifies a region to use to train the van object class. The left, top, width, and height values for the region are always returned in pixels, even if the values were set using percentages.

<autnresponse>
  <action>LISTOBJECTCLASSANNOTATIONS</action>
  <response>SUCCESS</response>
  <responsedata>
    <image>
      <imagelabel>image1</imagelabel>
      <annotations>
        <annotation>
          <annotationlabel>annotation1</annotationlabel>
          <identifier>car</identifier>
          <region>
            <left>0</left>
            <top>50</top>
            <width>50</width>
            <height>50</height>
          </region>
        </annotation>
        <annotation>
          <annotationlabel>annotation2</annotationlabel>
          <identifier>van</identifier>
          <region>
            <left>50</left>
            <top>0</top>
            <width>50</width>
            <height>50</height>
          </region>
        </annotation>
      </annotations>
    </image>
  </responsedata>
</autnresponse>