BoundingBox
Identifies the bounding box around the label, face, text, object of interest, or
personal protective equipment. The left (x-coordinate) and 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).
The top and 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).
The width and 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 is 0.1.
Note
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 left or
top values.
Contents
- Height
-
Height of the bounding box as a ratio of the overall image height.
Type: Float
Required: No
- Left
-
Left coordinate of the bounding box as a ratio of overall image width.
Type: Float
Required: No
- Top
-
Top coordinate of the bounding box as a ratio of overall image height.
Type: Float
Required: No
- Width
-
Width of the bounding box as a ratio of the overall image width.
Type: Float
Required: No
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
