cut face from video

[prozaklob]

hi! I am newbie in python.

I needed a little magic (help) :)

I detect a face and save a picture from a video with a face.
But I would like to save not the whole picture, but only the part where there is a face.

What do I need to read to find a solution to my problem? thank

import cv2
from mtcnn import MTCNN
import os
import time

detector = MTCNN()

cap = cv2.VideoCapture("https://linktovideo")
while True:
    __, frame = cap.read()
    
    result = detector.detect_faces(frame)
    if result != []:
        for person in result:
            bounding_box = person['box']
            keypoints = person['keypoints']
    
            cv2.rectangle(frame,
                          (bounding_box[0], bounding_box[1]),
                          (bounding_box[0]+bounding_box[2], bounding_box[1] + bounding_box[3]),
                          (0,155,255),
                          2)
    
            timestr = time.strftime("%Y%m%d-%H%M%S")
            cv2.imwrite("dataset/User." + str(timestr) + '.' + str(count) + ".jpg", frame)
            
    cv2.imshow('frame',frame)
    if cv2.waitKey(1) &0xFF == ord('q'):
        break
cap.release()
cv2.destroyAllWindows()

[prozaklob]

ok. im create noob-code without normal logic :)

import tensorflow as tf
from matplotlib import pyplot
from matplotlib.patches import Rectangle
from matplotlib.patches import Circle
from mtcnn import MTCNN
import cv2
import os
import time
import sys




def draw_faces(filename, result_list):
    data = pyplot.imread(filename)
    count = 0
    for i in range(len(result_list)):
        
        x1, y1, width, height = result_list[i]['box']
        x2, y2 = x1 + width, y1 + height
        pyplot.subplot(1, len(result_list), i+1)
        timestr = time.strftime("%Y%m%d-%H%M%S")
        count += 1
        newfile = ("dataset/User." + str(timestr) + '.' + str(count) + "_new.jpg")
        pyplot.imsave(newfile, data[y1:y2, x1:x2])
        
detector = MTCNN(post_process=False, device='cuda:0')

count = 0

cap = cv2.VideoCapture("https://videolink")
cap.set(cv2.CAP_PROP_FPS, int(10))
while True:
    #Capture frame-by-frame
    __, frame = cap.read()
    
    #Use MTCNN to detect faces
    result = detector.detect_faces(frame)
    if result != []:
        for person in result:
            count += 1
            
            
            
            timestr = time.strftime("%Y%m%d-%H%M%S")
            filename = ("dataset/User." + str(timestr) + '.' + str(count) + ".jpg")
            cv2.imwrite("dataset/User." + str(timestr) + '.' + str(count) + ".jpg", frame)
            print(filename)
            
            draw_faces(filename, result)
            
            cv2.imshow('frame', frame)

        k = cv2.waitKey(100) & 0xff # Press 'ESC' for exiting video
        if k == 27:
            break
        elif count >= 30: # Take 30 face sample and stop video
            break