rectangle

This is used to set the coordinates for a bounding box. A rectangle has the following form:

"rectangle": {
    "x": value,
    "y": value,
    "w": value,
    "h": value
}

where x and y are the coordinates of the upper left corner of the region of interest and w and h are the width and height (respectively) of the region.

Example

"rectangle": {
    "x": 100,
    "y": 200,
    "w": 1024,
    "h": 640,
}