教你用300行Python代码实现一个人脸识别系统
教你用300行Python代码实现一个人脸识别系统
肆十二
于2022-01-10 14:24:18发布
17990
收藏
261
分类专栏：
大作业
文章标签：
python
人工智能
人脸识别
大作业
专栏收录该内容
13 篇文章
188 订阅
订阅专栏
用300行Python代码实现一个人脸识别系统
最近又多了不少朋友关注，先在这里谢谢大家。关注我的朋友大多数都是大学生，而且我简单看了一下，低年级的大学生居多，大多数都是为了完成课程设计，作为一个过来人，还是希望大家平时能多抽出点时间学习一下，这种临时抱佛脚的策略要少用嗷。今天我们来python实现一个人脸识别系统，主要是借助了dlib这个库，相当于我们直接调用现成的库来进行人脸识别，就省去了之前教程中的数据收集和模型训练的步骤了。
B站视频：用300行代码实现人脸识别系统_哔哩哔哩_bilibili
CSDN博客：用300行Python代码实现一个人脸识别系统_dejahu的博客-CSDN博客
码云地址：face_dlib_py37_42: 用300行代码开发一个人脸识别系统-42 (gitee.com)
预编译dlib库下载地址：人脸识别系统+windows64位-dlib-19.17.0-cp37-cp37m-win_amd64.zip-深度学习文档类资源-CSDN文库
注：直接安装dlib库可能会有编译错误，可以通过下列方式获取编译好的dlib库
获取方式1： 直接从付费资源下载
人脸识别系统+windows64位-dlib-19.17.0-cp37-cp37m-win_amd64.zip-深度学习文档类资源-CSDN文库
获取方式2： 在B站视频三连并在评论区留下你的邮箱地址
用300行代码实现人脸识别系统_哔哩哔哩_bilibili
获取方式3:
在CSDN博客中三连并在评论区留下你的邮箱地址
用300行Python代码实现一个人脸识别系统_dejahu的博客-CSDN博客
基本原理人脸识别和目标检测这些还不太一样，比如大家传统的训练一个目标检测模型，你只有对这个目标训练了之后，你的模型才能找到这样的目标，比如你的目标检测模型如果是检测植物的，那显然就不能检测动物。但是人脸识别就不一样，以你的手机为例，你发现你只录入了一次你的人脸信息，不需要训练，他就能准确的识别你，这里识别的原理是通过人脸识别的模型提取你脸部的特征向量，然后将实时检测到的你的人脸同数据库中保存的人脸进行比对，如果相似度超过一定的阈值之后，就认为比对成功。不过我这里说的只是简化版本的人脸识别，现在手机和门禁这些要复杂和安全的多，也不是简单平面上的人脸识别。
总结下来可以分为下面的步骤：
上传人脸到数据库人脸检测数据库比对并返回结果这里我做了一个简答的示意图，可以帮助大家简单理解一下。
代码实现废话不多说，这里就是我们的代码实现，代码我已经上传到码云，大家直接下载就行，地址就在博客开头。
不会安装python环境的兄弟请看这里：如何在pycharm中配置anaconda的虚拟环境_dejahu的博客-CSDN博客_如何在pycharm中配置anaconda
创建虚拟环境创建虚拟环境前请大家先下载博客开头的码云源码到本地。
本次我们需要使用到python3.7的虚拟环境，命令如下：
conda create -n face python==3.7.3 conda activate face 安装必要的库 pip install -r requirements.txt 愉快地开始你的人脸识别吧！执行下面的主文件即可
python UI.py或者在pycharm中按照下面的方式直接运行即可
首先将你需要识别的人脸上传到数据库中
通过第二个视频检测功能识别实时的人脸
详细的代码如下：
# -*- coding: utf-8 -*- """ ------------------------------------------------- Project Name: yolov5-jungong File Name: window.py.py Author: chenming Create Date: 2021/11/8 Description：图形化界面，可以检测摄像头、视频和图片文件 ------------------------------------------------- """ # 应该在界面启动的时候就将模型加载出来，设置tmp的目录来放中间的处理结果 import shutil import PyQt5.QtCore from PyQt5.QtGui import * from PyQt5.QtCore import * from PyQt5.QtWidgets import * import threading import argparse import os import sys from pathlib import Path import cv2 import torch import torch.backends.cudnn as cudnn import os.path as osp FILE = Path(__file__).resolve() ROOT = FILE.parents[0] # YOLOv5 root directory if str(ROOT) not in sys.path: sys.path.append(str(ROOT)) # add ROOT to PATH ROOT = Path(os.path.relpath(ROOT, Path.cwd())) # relative from models.common import DetectMultiBackend from utils.datasets import IMG_FORMATS, VID_FORMATS, LoadImages, LoadStreams from utils.general import (LOGGER, check_file, check_img_size, check_imshow, check_requirements, colorstr, increment_path, non_max_suppression, print_args, scale_coords, strip_optimizer, xyxy2xywh) from utils.plots import Annotator, colors, save_one_box from utils.torch_utils import select_device, time_sync # 添加一个关于界面 # 窗口主类 class MainWindow(QTabWidget): # 基本配置不动，然后只动第三个界面 def __init__(self): # 初始化界面 super().__init__() self.setWindowTitle('Target detection system') self.resize(1200, 800) self.setWindowIcon(QIcon("images/UI/lufei.png")) # 图片读取进程 self.output_size = 480 self.img2predict = "" self.device = 'cpu' # # 初始化视频读取线程 self.vid_source = '0' # 初始设置为摄像头 self.stopEvent = threading.Event() self.webcam = True self.stopEvent.clear() self.model = self.model_load(weights="runs/train/exp_yolov5s/weights/best.pt", device="cpu") # todo 指明模型加载的位置的设备 self.initUI() self.reset_vid() ''' ***模型初始化*** ''' @torch.no_grad() def model_load(self, weights="", # model.pt path(s) device='', # cuda device, i.e. 0 or 0,1,2,3 or cpu half=False, # use FP16 half-precision inference dnn=False, # use OpenCV DNN for ONNX inference ): device = select_device(device) half &= device.type != 'cpu' # half precision only supported on CUDA device = select_device(device) model = DetectMultiBackend(weights, device=device, dnn=dnn) stride, names, pt, jit, onnx = model.stride, model.names, model.pt, model.jit, model.onnx # Half half &= pt and device.type != 'cpu' # half precision only supported by PyTorch on CUDA if pt: model.model.half() if half else model.model.float() print("模型加载完成!") return model ''' ***界面初始化*** ''' def initUI(self): # 图片检测子界面 font_title = QFont('楷体', 16) font_main = QFont('楷体', 14) # 图片识别界面, 两个按钮，上传图片和显示结果 img_detection_widget = QWidget() img_detection_layout = QVBoxLayout() img_detection_title = QLabel("图片识别功能") img_detection_title.setFont(font_title) mid_img_widget = QWidget() mid_img_layout = QHBoxLayout() self.left_img = QLabel() self.right_img = QLabel() self.left_img.setPixmap(QPixmap("images/UI/up.jpeg")) self.right_img.setPixmap(QPixmap("images/UI/right.jpeg")) self.left_img.setAlignment(Qt.AlignCenter) self.right_img.setAlignment(Qt.AlignCenter) mid_img_layout.addWidget(self.left_img) mid_img_layout.addStretch(0) mid_img_layout.addWidget(self.right_img) mid_img_widget.setLayout(mid_img_layout) up_img_button = QPushButton("上传图片") det_img_button = QPushButton("开始检测") up_img_button.clicked.connect(self.upload_img) det_img_button.clicked.connect(self.detect_img) up_img_button.setFont(font_main) det_img_button.setFont(font_main) up_img_button.setStyleSheet("QPushButton{color:white}" "QPushButton:hover{background-color: rgb(2,110,180);}" "QPushButton{background-color:rgb(48,124,208)}" "QPushButton{border:2px}" "QPushButton{border-radius:5px}" "QPushButton{padding:5px 5px}" "QPushButton{margin:5px 5px}") det_img_button.setStyleSheet("QPushButton{color:white}" "QPushButton:hover{background-color: rgb(2,110,180);}" "QPushButton{background-color:rgb(48,124,208)}" "QPushButton{border:2px}" "QPushButton{border-radius:5px}" "QPushButton{padding:5px 5px}" "QPushButton{margin:5px 5px}") img_detection_layout.addWidget(img_detection_title, alignment=Qt.AlignCenter) img_detection_layout.addWidget(mid_img_widget, alignment=Qt.AlignCenter) img_detection_layout.addWidget(up_img_button) img_detection_layout.addWidget(det_img_button) img_detection_widget.setLayout(img_detection_layout) # todo 视频识别界面 # 视频识别界面的逻辑比较简单，基本就从上到下的逻辑 vid_detection_widget = QWidget() vid_detection_layout = QVBoxLayout() vid_title = QLabel("视频检测功能") vid_title.setFont(font_title) self.vid_img = QLabel() self.vid_img.setPixmap(QPixmap("images/UI/up.jpeg")) vid_title.setAlignment(Qt.AlignCenter) self.vid_img.setAlignment(Qt.AlignCenter) self.webcam_detection_btn = QPushButton("摄像头实时监测") self.mp4_detection_btn = QPushButton("视频文件检测") self.vid_stop_btn = QPushButton("停止检测") self.webcam_detection_btn.setFont(font_main) self.mp4_detection_btn.setFont(font_main) self.vid_stop_btn.setFont(font_main) self.webcam_detection_btn.setStyleSheet("QPushButton{color:white}" "QPushButton:hover{background-color: rgb(2,110,180);}" "QPushButton{background-color:rgb(48,124,208)}" "QPushButton{border:2px}" "QPushButton{border-radius:5px}" "QPushButton{padding:5px 5px}" "QPushButton{margin:5px 5px}") self.mp4_detection_btn.setStyleSheet("QPushButton{color:white}" "QPushButton:hover{background-color: rgb(2,110,180);}" "QPushButton{background-color:rgb(48,124,208)}" "QPushButton{border:2px}" "QPushButton{border-radius:5px}" "QPushButton{padding:5px 5px}" "QPushButton{margin:5px 5px}") self.vid_stop_btn.setStyleSheet("QPushButton{color:white}" "QPushButton:hover{background-color: rgb(2,110,180);}" "QPushButton{background-color:rgb(48,124,208)}" "QPushButton{border:2px}" "QPushButton{border-radius:5px}" "QPushButton{padding:5px 5px}" "QPushButton{margin:5px 5px}") self.webcam_detection_btn.clicked.connect(self.open_cam) self.mp4_detection_btn.clicked.connect(self.open_mp4) self.vid_stop_btn.clicked.connect(self.close_vid) # 添加组件到布局上 vid_detection_layout.addWidget(vid_title) vid_detection_layout.addWidget(self.vid_img) vid_detection_layout.addWidget(self.webcam_detection_btn) vid_detection_layout.addWidget(self.mp4_detection_btn) vid_detection_layout.addWidget(self.vid_stop_btn) vid_detection_widget.setLayout(vid_detection_layout) # todo 关于界面 about_widget = QWidget() about_layout = QVBoxLayout() about_title = QLabel('欢迎使用目标检测系统\n\n 提供付费指导：有需要的好兄弟加下面的QQ即可') # todo 修改欢迎词语 about_title.setFont(QFont('楷体', 18)) about_title.setAlignment(Qt.AlignCenter) about_img = QLabel() about_img.setPixmap(QPixmap('images/UI/qq.png')) about_img.setAlignment(Qt.AlignCenter) # label4.setText("<a href='https://oi.wiki/wiki/学习率的调整'>如何调整学习率</a>") label_super = QLabel() # todo 更换作者信息 label_super.setText("<a href='https://blog.csdn.net/ECHOSON'>或者你可以在这里找到我-->肆十二</a>") label_super.setFont(QFont('楷体', 16)) label_super.setOpenExternalLinks(True) # label_super.setOpenExternalLinks(True) label_super.setAlignment(Qt.AlignRight) about_layout.addWidget(about_title) about_layout.addStretch() about_layout.addWidget(about_img) about_layout.addStretch() about_layout.addWidget(label_super) about_widget.setLayout(about_layout) self.left_img.setAlignment(Qt.AlignCenter) self.addTab(img_detection_widget, '图片检测') self.addTab(vid_detection_widget, '视频检测') self.addTab(about_widget, '联系我') self.setTabIcon(0, QIcon('images/UI/lufei.png')) self.setTabIcon(1, QIcon('images/UI/lufei.png')) self.setTabIcon(2, QIcon('images/UI/lufei.png')) ''' ***上传图片*** ''' def upload_img(self): # 选择录像文件进行读取 fileName, fileType = QFileDialog.getOpenFileName(self, 'Choose file', '', '*.jpg *.png *.tif *.jpeg') if fileName: suffix = fileName.split(".")[-1] save_path = osp.join("images/tmp", "tmp_upload." + suffix) shutil.copy(fileName, save_path) # 应该调整一下图片的大小，然后统一防在一起 im0 = cv2.imread(save_path) resize_scale = self.output_size / im0.shape[0] im0 = cv2.resize(im0, (0, 0), fx=resize_scale, fy=resize_scale) cv2.imwrite("images/tmp/upload_show_result.jpg", im0) # self.right_img.setPixmap(QPixmap("images/tmp/single_result.jpg")) self.img2predict = fileName self.left_img.setPixmap(QPixmap("images/tmp/upload_show_result.jpg")) # todo 上传图片之后右侧的图片重置， self.right_img.setPixmap(QPixmap("images/UI/right.jpeg")) ''' ***检测图片*** ''' def detect_img(self): model = self.model output_size = self.output_size source = self.img2predict # file/dir/URL/glob, 0 for webcam imgsz = 640 # inference size (pixels) conf_thres = 0.25 # confidence threshold iou_thres = 0.45 # NMS IOU threshold max_det = 1000 # maximum detections per image device = self.device # cuda device, i.e. 0 or 0,1,2,3 or cpu view_img = False # show results save_txt = False # save results to *.txt save_conf = False # save confidences in --save-txt labels save_crop = False # save cropped prediction boxes nosave = False # do not save images/videos classes = None # filter by class: --class 0, or --class 0 2 3 agnostic_nms = False # class-agnostic NMS augment = False # ugmented inference visualize = False # visualize features line_thickness = 3 # bounding box thickness (pixels) hide_labels = False # hide labels hide_conf = False # hide confidences half = False # use FP16 half-precision inference dnn = False # use OpenCV DNN for ONNX inference print(source) if source == "": QMessageBox.warning(self, "请上传", "请先上传图片再进行检测") else: source = str(source) device = select_device(self.device) webcam = False stride, names, pt, jit, onnx = model.stride, model.names, model.pt, model.jit, model.onnx imgsz = check_img_size(imgsz, s=stride) # check image size save_img = not nosave and not source.endswith('.txt') # save inference images # Dataloader if webcam: view_img = check_imshow() cudnn.benchmark = True # set True to speed up constant image size inference dataset = LoadStreams(source, img_size=imgsz, stride=stride, auto=pt and not jit) bs = len(dataset) # batch_size else: dataset = LoadImages(source, img_size=imgsz, stride=stride, auto=pt and not jit) bs = 1 # batch_size vid_path, vid_writer = [None] * bs, [None] * bs # Run inference if pt and device.type != 'cpu': model(torch.zeros(1, 3, *imgsz).to(device).type_as(next(model.model.parameters()))) # warmup dt, seen = [0.0, 0.0, 0.0], 0 for path, im, im0s, vid_cap, s in dataset: t1 = time_sync() im = torch.from_numpy(im).to(device) im = im.half() if half else im.float() # uint8 to fp16/32 im /= 255 # 0 - 255 to 0.0 - 1.0 if len(im.shape) == 3: im = im[None] # expand for batch dim t2 = time_sync() dt[0] += t2 - t1 # Inference # visualize = increment_path(save_dir / Path(path).stem, mkdir=True) if visualize else False pred = model(im, augment=augment, visualize=visualize) t3 = time_sync() dt[1] += t3 - t2 # NMS pred = non_max_suppression(pred, conf_thres, iou_thres, classes, agnostic_nms, max_det=max_det) dt[2] += time_sync() - t3 # Second-stage classifier (optional) # pred = utils.general.apply_classifier(pred, classifier_model, im, im0s) # Process predictions for i, det in enumerate(pred): # per image seen += 1 if webcam: # batch_size >= 1 p, im0, frame = path[i], im0s[i].copy(), dataset.count s += f'{i}: ' else: p, im0, frame = path, im0s.copy(), getattr(dataset, 'frame', 0) p = Path(p) # to Path s += '%gx%g ' % im.shape[2:] # print string gn = torch.tensor(im0.shape)[[1, 0, 1, 0]] # normalization gain whwh imc = im0.copy() if save_crop else im0 # for save_crop annotator = Annotator(im0, line_width=line_thickness, example=str(names)) if len(det): # Rescale boxes from img_size to im0 size det[:, :4] = scale_coords(im.shape[2:], det[:, :4], im0.shape).round() # Print results for c in det[:, -1].unique(): n = (det[:, -1] == c).sum() # detections per class s += f"{n} {names[int(c)]}{'s' * (n > 1)}, " # add to string # Write results for *xyxy, conf, cls in reversed(det): if save_txt: # Write to file xywh = (xyxy2xywh(torch.tensor(xyxy).view(1, 4)) / gn).view( -1).tolist() # normalized xywh line = (cls, *xywh, conf) if save_conf else (cls, *xywh) # label format # with open(txt_path + '.txt', 'a') as f: # f.write(('%g ' * len(line)).rstrip() % line + '\n') if save_img or save_crop or view_img: # Add bbox to image c = int(cls) # integer class label = None if hide_labels else (names[c] if hide_conf else f'{names[c]} {conf:.2f}') annotator.box_label(xyxy, label, color=colors(c, True)) # if save_crop: # save_one_box(xyxy, imc, file=save_dir / 'crops' / names[c] / f'{p.stem}.jpg', # BGR=True) # Print time (inference-only) LOGGER.info(f'{s}Done. ({t3 - t2:.3f}s)') # Stream results im0 = annotator.result() # if view_img: # cv2.imshow(str(p), im0) # cv2.waitKey(1) # 1 millisecond # Save results (image with detections) resize_scale = output_size / im0.shape[0] im0 = cv2.resize(im0, (0, 0), fx=resize_scale, fy=resize_scale) cv2.imwrite("images/tmp/single_result.jpg", im0) # 目前的情况来看，应该只是ubuntu下会出问题，但是在windows下是完整的，所以继续 self.right_img.setPixmap(QPixmap("images/tmp/single_result.jpg")) # 视频检测，逻辑基本一致，有两个功能，分别是检测摄像头的功能和检测视频文件的功能，先做检测摄像头的功能。 ''' ### 界面关闭事件 ### ''' def closeEvent(self, event): reply = QMessageBox.question(self, 'quit', "Are you sure?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No) if reply == QMessageBox.Yes: self.close() event.accept() else: event.ignore() ''' ### 视频关闭事件 ### ''' def open_cam(self): self.webcam_detection_btn.setEnabled(False) self.mp4_detection_btn.setEnabled(False) self.vid_stop_btn.setEnabled(True) self.vid_source = '0' self.webcam = True th = threading.Thread(target=self.detect_vid) th.start() ''' ### 开启视频文件检测事件 ### ''' def open_mp4(self): fileName, fileType = QFileDialog.getOpenFileName(self, 'Choose file', '', '*.mp4 *.avi') if fileName: self.webcam_detection_btn.setEnabled(False) self.mp4_detection_btn.setEnabled(False) # self.vid_stop_btn.setEnabled(True) self.vid_source = fileName self.webcam = False th = threading.Thread(target=self.detect_vid) th.start() ''' ### 视频开启事件 ### ''' # 视频和摄像头的主函数是一样的，不过是传入的source不同罢了 def detect_vid(self): # pass model = self.model output_size = self.output_size # source = self.img2predict # file/dir/URL/glob, 0 for webcam imgsz = 640 # inference size (pixels) conf_thres = 0.25 # confidence threshold iou_thres = 0.45 # NMS IOU threshold max_det = 1000 # maximum detections per image # device = self.device # cuda device, i.e. 0 or 0,1,2,3 or cpu view_img = False # show results save_txt = False # save results to *.txt save_conf = False # save confidences in --save-txt labels save_crop = False # save cropped prediction boxes nosave = False # do not save images/videos classes = None # filter by class: --class 0, or --class 0 2 3 agnostic_nms = False # class-agnostic NMS augment = False # ugmented inference visualize = False # visualize features line_thickness = 3 # bounding box thickness (pixels) hide_labels = False # hide labels hide_conf = False # hide confidences half = False # use FP16 half-precision inference dnn = False # use OpenCV DNN for ONNX inference source = str(self.vid_source) webcam = self.webcam device = select_device(self.device) stride, names, pt, jit, onnx = model.stride, model.names, model.pt, model.jit, model.onnx imgsz = check_img_size(imgsz, s=stride) # check image size save_img = not nosave and not source.endswith('.txt') # save inference images # Dataloader if webcam: view_img = check_imshow() cudnn.benchmark = True # set True to speed up constant image size inference dataset = LoadStreams(source, img_size=imgsz, stride=stride, auto=pt and not jit) bs = len(dataset) # batch_size else: dataset = LoadImages(source, img_size=imgsz, stride=stride, auto=pt and not jit) bs = 1 # batch_size vid_path, vid_writer = [None] * bs, [None] * bs # Run inference if pt and device.type != 'cpu': model(torch.zeros(1, 3, *imgsz).to(device).type_as(next(model.model.parameters()))) # warmup dt, seen = [0.0, 0.0, 0.0], 0 for path, im, im0s, vid_cap, s in dataset: t1 = time_sync() im = torch.from_numpy(im).to(device) im = im.half() if half else im.float() # uint8 to fp16/32 im /= 255 # 0 - 255 to 0.0 - 1.0 if len(im.shape) == 3: im = im[None] # expand for batch dim t2 = time_sync() dt[0] += t2 - t1 # Inference # visualize = increment_path(save_dir / Path(path).stem, mkdir=True) if visualize else False pred = model(im, augment=augment, visualize=visualize) t3 = time_sync() dt[1] += t3 - t2 # NMS pred = non_max_suppression(pred, conf_thres, iou_thres, classes, agnostic_nms, max_det=max_det) dt[2] += time_sync() - t3 # Second-stage classifier (optional) # pred = utils.general.apply_classifier(pred, classifier_model, im, im0s) # Process predictions for i, det in enumerate(pred): # per image seen += 1 if webcam: # batch_size >= 1 p, im0, frame = path[i], im0s[i].copy(), dataset.count s += f'{i}: ' else: p, im0, frame = path, im0s.copy(), getattr(dataset, 'frame', 0) p = Path(p) # to Path # save_path = str(save_dir / p.name) # im.jpg # txt_path = str(save_dir / 'labels' / p.stem) + ( # '' if dataset.mode == 'image' else f'_{frame}') # im.txt s += '%gx%g ' % im.shape[2:] # print string gn = torch.tensor(im0.shape)[[1, 0, 1, 0]] # normalization gain whwh imc = im0.copy() if save_crop else im0 # for save_crop annotator = Annotator(im0, line_width=line_thickness, example=str(names)) if len(det): # Rescale boxes from img_size to im0 size det[:, :4] = scale_coords(im.shape[2:], det[:, :4], im0.shape).round() # Print results for c in det[:, -1].unique(): n = (det[:, -1] == c).sum() # detections per class s += f"{n} {names[int(c)]}{'s' * (n > 1)}, " # add to string # Write results for *xyxy, conf, cls in reversed(det): if save_txt: # Write to file xywh = (xyxy2xywh(torch.tensor(xyxy).view(1, 4)) / gn).view( -1).tolist() # normalized xywh line = (cls, *xywh, conf) if save_conf else (cls, *xywh) # label format # with open(txt_path + '.txt', 'a') as f: # f.write(('%g ' * len(line)).rstrip() % line + '\n') if save_img or save_crop or view_img: # Add bbox to image c = int(cls) # integer class label = None if hide_labels else (names[c] if hide_conf else f'{names[c]} {conf:.2f}') annotator.box_label(xyxy, label, color=colors(c, True)) # if save_crop: # save_one_box(xyxy, imc, file=save_dir / 'crops' / names[c] / f'{p.stem}.jpg', # BGR=True) # Print time (inference-only) LOGGER.info(f'{s}Done. ({t3 - t2:.3f}s)') # Stream results # Save results (image with detections) im0 = annotator.result() frame = im0 resize_scale = output_size / frame.shape[0] frame_resized = cv2.resize(frame, (0, 0), fx=resize_scale, fy=resize_scale) cv2.imwrite("images/tmp/single_result_vid.jpg", frame_resized) self.vid_img.setPixmap(QPixmap("images/tmp/single_result_vid.jpg")) # self.vid_img # if view_img: # cv2.imshow(str(p), im0) # self.vid_img.setPixmap(QPixmap("images/tmp/single_result_vid.jpg")) # cv2.waitKey(1) # 1 millisecond if cv2.waitKey(25) & self.stopEvent.is_set() == True: self.stopEvent.clear() self.webcam_detection_btn.setEnabled(True) self.mp4_detection_btn.setEnabled(True) self.reset_vid() break # self.reset_vid() ''' ### 界面重置事件 ### ''' def reset_vid(self): self.webcam_detection_btn.setEnabled(True) self.mp4_detection_btn.setEnabled(True) self.vid_img.setPixmap(QPixmap("images/UI/up.jpeg")) self.vid_source = '0' self.webcam = True ''' ### 视频重置事件 ### ''' def close_vid(self): self.stopEvent.set() self.reset_vid() if __name__ == "__main__": app = QApplication(sys.argv) mainWindow = MainWindow() mainWindow.show() sys.exit(app.exec_()) 找到我你可以通过这些方式来寻找我。
B站：肆十二-
CSDN：肆十二
知乎：肆十二
微博：肆十二-
现在关注以后就是老朋友喽！