【数据集】【YOLO】【目标检测】安全帽识别数据集 22789 张，YOLO安全帽佩戴目标检测实战训练教程！

import os
import random

trainval_percent = 0.9
train_percent = 0.9
xmlfilepath = 'data/Annotations'
txtsavepath = 'data/ImageSets'
total_xml = os.listdir(xmlfilepath)

num = len(total_xml)
list = range(num)
tv = int(num * trainval_percent)
tr = int(tv * train_percent)
trainval = random.sample(list, tv)
train = random.sample(trainval, tr)

ftrainval = open('data/ImageSets/trainval.txt', 'w')
ftest = open('data/ImageSets/test.txt', 'w')
ftrain = open('data/ImageSets/train.txt', 'w')
fval = open('data/ImageSets/val.txt', 'w')

for i in list:
    name = total_xml[i][:-4] + '\n'
    if i in trainval:
        ftrainval.write(name)
        if i in train:
            ftrain.write(name)
        else:
            fval.write(name)
    else:
        ftest.write(name)

ftrainval.close()
ftrain.close()
fval.close()
ftest.close()

model = YOLO('yolov8s.pt')
results = model.train(data='data.yaml', epochs=200, imgsz=640, batch=16, workers=0)

yolo train data=data.yaml model=yolov8s.pt epochs=200 imgsz=640 batch=16 workers=0 device=0

import cv2
from ultralytics import YOLO

# Load the YOLOv8 model
model = YOLO("./best.pt") # 自定义预测模型加载路径

# Open the video file
video_path = "./demo.mp4" # 自定义预测视频路径
cap = cv2.VideoCapture(video_path) 

# Get the video properties
frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
fps = cap.get(cv2.CAP_PROP_FPS)

# Define the codec and create VideoWriter object
fourcc = cv2.VideoWriter_fourcc(*'mp4v')  # Be sure to use lower case
out = cv2.VideoWriter('./outputs.mp4', fourcc, fps, (frame_width, frame_height)) # 自定义输出视频路径

# Loop through the video frames
while cap.isOpened():
    # Read a frame from the video
    success, frame = cap.read()

    if success:
        # Run YOLOv8 inference on the frame
        # results = model(frame)
        results = model.predict(source=frame, save=True, imgsz=640, conf=0.5)

        results[0].names[0] = "道路积水"
        # Visualize the results on the frame
        annotated_frame = results[0].plot()

        # Write the annotated frame to the output file
        out.write(annotated_frame)

        # Display the annotated frame (optional)
        cv2.imshow("YOLOv8 Inference", annotated_frame)

        # Break the loop if 'q' is pressed
        if cv2.waitKey(1) & 0xFF == ord("q"):
            break
    else:
        # Break the loop if the end of the video is reached
        break

# Release the video capture and writer objects
cap.release()
out.release()
cv2.destroyAllWindows()

yolo predict model="best.pt" source='demo.jpg'

# 安装torch环境
pip install torch -i https://pypi.tuna.tsinghua.edu.cn/simple
# 安装PySide6依赖项
pip install PySide6 -i https://pypi.tuna.tsinghua.edu.cn/simple
# 安装opencv-python依赖项
pip install opencv-python -i https://pypi.tuna.tsinghua.edu.cn/simple

class MyWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()

        self.init_gui()
        self.model = None
        self.timer = QtCore.QTimer()
        self.timer1 = QtCore.QTimer()
        self.cap = None
        self.video = None
        self.file_path = None
        self.base_name = None
        self.timer1.timeout.connect(self.video_show)

    def init_gui(self):
        self.folder_path = "model_file"  # 自定义修改：设置文件夹路径
        self.setFixedSize(1300, 650)
        self.setWindowTitle('目标检测')  # 自定义修改：设置窗口名称
        self.setWindowIcon(QIcon("111.jpg"))  # 自定义修改：设置窗口图标
        central_widget = QtWidgets.QWidget(self)
        self.setCentralWidget(central_widget)
        main_layout = QtWidgets.QVBoxLayout(central_widget)

        # 界面上半部分： 视频框
        topLayout = QtWidgets.QHBoxLayout()
        self.oriVideoLabel = QtWidgets.QLabel(self)
        
        # 界面下半部分： 输出框 和 按钮
        groupBox = QtWidgets.QGroupBox(self)
        groupBox.setStyleSheet('QGroupBox {border: 0px solid #D7E2F9;}')
        bottomLayout = QtWidgets.QHBoxLayout(groupBox)
        main_layout.addWidget(groupBox)
        btnLayout = QtWidgets.QHBoxLayout()
        btn1Layout = QtWidgets.QVBoxLayout()
        btn2Layout = QtWidgets.QVBoxLayout()
        btn3Layout = QtWidgets.QVBoxLayout()

        # 创建日志打印文本框
        self.outputField = QtWidgets.QTextBrowser()
        self.outputField.setFixedSize(530, 180)
        self.outputField.setStyleSheet('font-size: 13px; font-family: "Microsoft YaHei"; background-color: #f0f0f0; border: 2px solid #ccc; border-radius: 10px;')
        self.detectlabel = QtWidgets.QLabel(self)
        self.oriVideoLabel.setFixedSize(530, 400)
        self.detectlabel.setFixedSize(530, 400)
        self.oriVideoLabel.setStyleSheet('border: 2px solid #ccc; border-radius: 10px; margin-top:75px;')
        self.detectlabel.setStyleSheet('border: 2px solid #ccc; border-radius: 10px; margin-top: 75px;')
        topLayout.addWidget(self.oriVideoLabel)
        topLayout.addWidget(self.detectlabel)
        main_layout.addLayout(topLayout)