i got the frame but i didn’t get any boxes around face i am using nicla vision .what is the issue
import sensor, image, time
Initialize camera sensor
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time=2000) # Let the camera adjust
sensor.set_gainceiling(16)
face_cascade = image.HaarCascade(“frontalface”, stages=25)
print(face_cascade)
clock = time.clock()
while True:
clock.tick()
img = sensor.snapshot()
objects = img.find_features(face_cascade, threshold=0.75, scale_factor=1.25)
for r in objects:
img.draw_rectangle(r, thickness=3)
print(clock.fps())