Annotate Human Head Positions in Images

Annotate images in Photoshop by overlaying bounding rectangles on top of the heads of the people in each image. There are 400 images showing at most 5 people at a time. Requirements: - draw tight bounding boxes around each person's head - do this for any situation including frontal, lateral and views from the back - use the same color every time for the same person (even when viewed from the back) - the same 5 individuals are shown in the images; choose a color for each person and consistently use it throughout; for instance you can use pure colors such as: red, green, blue, cyan, magenta - save JPEG at maximum quality settings - save each image with the same name as the original