CV：基于keras利用cv2自带两步检测法对《跑男第六季第五期》之如花片段(或调用摄像头)进行实时性别&脸部表情检测

CV：基于keras利用cv2自带两步检测法对《跑男第六季第五期》之如花片段(或调用摄像头)进行实时性别&脸部表情检测

目录

输出结果

设计思路

核心代码

输出结果

设计思路

核心代码

from statistics import mode
 
import cv2
from keras.models import load_model
import numpy as np
 
 
detection_model_path = '../trained_models/detection_models/haarcascade_frontalface_default.xml'
 
emotion_model_path = '../trained_models/emotion_models/fer2013_mini_XCEPTION.102-0.66.hdf5'
gender_model_path = '../trained_models/gender_models/simple_CNN.81-0.96.hdf5'
emotion_labels = get_labels('fer2013')
gender_labels = get_labels('imdb')
font = cv2.FONT_HERSHEY_SIMPLEX
 
frame_window = 10  
gender_offsets = (30, 60) 
emotion_offsets = (20, 40)
 
face_detection = load_detection_model(detection_model_path)
emotion_classifier = load_model(emotion_model_path, compile=False)
gender_classifier = load_model(gender_model_path, compile=False)
 
emotion_target_size = emotion_classifier.input_shape[1:3]
gender_target_size = gender_classifier.input_shape[1:3]
 
gender_window = []
emotion_window = []
 
cv2.namedWindow('window_frame_by_Jason_Niu')
 video_capture = cv2.VideoCapture(0)
video_capture = cv2.VideoCapture("F:\File_Python\Python_example\YOLOv3_use_TF\RunMan5.mp4") 
while True:
 
    bgr_image = video_capture.read()[1]
    gray_image = cv2.cvtColor(bgr_image, cv2.COLOR_BGR2GRAY) 分别将读取的图像进行灰化、RGB化处理
    rgb_image = cv2.cvtColor(bgr_image, cv2.COLOR_BGR2RGB)
    faces = detect_faces(face_detection, gray_image)  
    for face_coordinates in faces:
     
        x1, x2, y1, y2 = apply_offsets(face_coordinates, gender_offsets) 
        rgb_face = rgb_image[y1:y2, x1:x2]  
 
        x1, x2, y1, y2 = apply_offsets(face_coordinates, emotion_offsets)
        gray_face = gray_image[y1:y2, x1:x2]
        try:
            rgb_face = cv2.resize(rgb_face, (gender_target_size))
            gray_face = cv2.resize(gray_face, (emotion_target_size))
        except:
            continue
        gray_face = preprocess_input(gray_face, False)  
        gray_face = np.expand_dims(gray_face, 0)  
        gray_face = np.expand_dims(gray_face, -1)
 
        emotion_label_arg = np.argmax(emotion_classifier.predict(gray_face)) 
        emotion_text = emotion_labels[emotion_label_arg] 
        emotion_window.append(emotion_text)     
 
        rgb_face = np.expand_dims(rgb_face, 0)
        rgb_face = preprocess_input(rgb_face, False)
        gender_prediction = gender_classifier.predict(rgb_face) 
        gender_label_arg = np.argmax(gender_prediction)
        gender_text = gender_labels[gender_label_arg]
        gender_window.append(gender_text)
 
        if len(gender_window) > frame_window: 
            emotion_window.pop(0)         
            gender_window.pop(0)
        try:
            emotion_mode = mode(emotion_window)
            gender_mode = mode(gender_window)
        except:
            continue
 
        if gender_text == gender_labels[0]:
            color = (0, 0, 255)
        else:
            color = (255, 0, 0)
 
        draw_bounding_box(face_coordinates, rgb_image, color) 
        draw_text(face_coordinates, rgb_image, gender_mode,   
                  color, 0, -20, 1, 4)
        draw_text(face_coordinates, rgb_image, emotion_mode,
                  color, 0, -45, 1, 4)
        
 
    bgr_image = cv2.cvtColor(rgb_image, cv2.COLOR_RGB2BGR)  
    cv2.namedWindow("window_frame_by_Jason_Niu",0);
    cv2.resizeWindow("window_frame_by_Jason_Niu", 640, 380);
    cv2.imshow('window_frame_by_Jason_Niu', bgr_image)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break