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Identifies the bounding box around the object, face or text. The
top (y-coordinate) are coordinates representing the
top and left sides of the bounding box. Note that the upper-left corner of the image
is the origin (0,0).
left values returned are ratios of the overall
image size. For example, if the input image is 700x200 pixels, and the top-left coordinate
of the bounding box is 350x50 pixels, the API returns a
left value of
0.5 (350/700) and a
top value of 0.25 (50/200).
height values represent the dimensions of
the bounding box as a ratio of the overall image dimension. For example, if the input
image is 700x200 pixels, and the bounding box width is 70 pixels, the width returned
The bounding box coordinates can have negative values. For example, if Amazon Rekognition
is able to detect a face that is at the image edge and is only partially visible,
the service can return coordinates that are outside the image bounds and, depending
on the image edge, you might get negative values or values greater than 1 for the
public class BoundingBox
The BoundingBox type exposes the following members
Gets and sets the property Height.
Height of the bounding box as a ratio of the overall image height.
Gets and sets the property Left.
Left coordinate of the bounding box as a ratio of overall image width.
Gets and sets the property Top.
Top coordinate of the bounding box as a ratio of overall image height.
Gets and sets the property Width.
Width of the bounding box as a ratio of the overall image width.
Supported in: 1.3
Supported in: 4.5, 4.0, 3.5
Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms