draw.heat_map
Description
Superimposes a heat map over an image.
- class Node(config=None, **kwargs)[source]
Superimposes a heat map over an image.
The
draw.heat_map
node helps to identify areas that are more crowded. Areas that are more crowded are highlighted in red while areas that are less crowded are highlighted in blue.- Inputs
img
(numpy.ndarray
): A NumPy array of shape \((height, width, channels)\) containing the image data in BGR format.density_map
(numpy.ndarray
): A NumPy array of shape \((H, W)\) representing the number of persons per pixel. \(H\) and \(W\) are the height and width of the input image, respectively. The sum of the array is the estimated total number of people. This is produced by nodes such asmodel.csrnet
.- Outputs
img
(numpy.ndarray
): A NumPy array of shape \((height, width, channels)\) containing the image data in BGR format.- Configs
None.