Haar cascade problem

OpenMV Boards
1

This is my first time using an OpenMV device, and I’m having trouble running Haar Cascade on an OpenMV N6 device. Can you help me solve this problem?

2

Hi, please move on to using BlazeFace. The Haar Cascade library is really only needed for the older OpenMV Cams. BlazeFace runs at 30 FPS and is much more robust.

import csi
import time
import ml
from ml.postprocessing.mediapipe import BlazeFace

csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.RGB565)
csi0.framesize(csi.VGA)
csi0.window((400, 400))  # square window for best results
csi0.snapshot(time=2000)  # let AWB/AGC stabilize

model = ml.Model("/rom/blazeface_front_128.tflite",
                 postprocess=BlazeFace(threshold=0.4))
clock = time.clock()

while True:
    clock.tick()
    img = csi0.snapshot()
    for rect, score, keypoints in model.predict([img]):
        img.draw_rectangle(rect, color=(0, 0, 255))
        ml.utils.draw_keypoints(img, keypoints, color=(255, 0, 0))
    print(clock.fps(), "fps")
3

Thank you for your information