# 上料识别，获取上料图片，保存到data/images文件夹下
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import os
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import cv2
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import time
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import numpy as np
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import onnxruntime
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import win32com.client
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def list_webcams():
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# 创建一个WMI客户端实例
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wmi = win32com.client.GetObject("winmgmts:")
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webcams = wmi.InstancesOf("Win32_PnPEntity")
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# 创建摄像头和索引字典
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webcam_dict = {}
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index = 0
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for device in webcams:
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name = getattr(device, 'Name', None)
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pnp_class = getattr(device, 'PNPClass', None)
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if name is not None and cam1 in name:
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# 将设备名字和索引添加到字典中
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webcam_dict[cam1] = index
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index += 1
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elif name is not None and cam2 in name:
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# 将设备名字和索引添加到字典中
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webcam_dict[cam2] = index
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index += 1
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return webcam_dict
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# 调用另一个长焦镜头，拍摄清晰的局部药材图片
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def get_image():
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camera2_index = webcams.get(cam2)
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print("第二个摄像头索引：" + str(camera2_index))
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# 打开摄像头
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capture = cv2.VideoCapture(camera2_index, cv2.CAP_DSHOW)
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# 设置分辨率
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capture.set(cv2.CAP_PROP_FRAME_WIDTH, 1920) # 宽度
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capture.set(cv2.CAP_PROP_FRAME_HEIGHT, 1080) # 高度
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# 检查摄像头是否成功打开
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if not capture.isOpened():
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print("无法打开摄像头2")
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exit()
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width2 = capture.get(cv2.CAP_PROP_FRAME_WIDTH)
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height2 = capture.get(cv2.CAP_PROP_FRAME_HEIGHT)
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print("摄像头2分辨率:", width2, "x", height2)
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# 循环读取摄像头画面
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# Shadows name 'width' from outer scope
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count = 0
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while True:
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ret2, frame2 = capture.read()
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if not ret2:
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print("无法读取摄像头画面")
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break
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count += 1
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# 1920*1080的图像，中心裁剪640*480的区域
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# a2 = int(height2 / 2 - target_height / 2)
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# b2 = int(height2 / 2 + target_height / 2)
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# c2 = int(width2 / 2 - target_width / 2)
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# d2 = int(width2 / 2 + target_width / 2)
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# cropped_frame2 = frame2[a2:b2, c2:d2]
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if count == 2:
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# 调整图像尺寸
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resized_frame2 = cv2.resize(frame2, (target_width, target_height))
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# 显示画面
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# cv2.imshow('Output2', resized_frame2)
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# 生成保存文件名，以当前时间命名
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save_name2 = time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".jpg"
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# 保存调整尺寸后的图片
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cv2.imwrite(save_path + "2/" + save_name2, resized_frame2)
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# cv2.imshow("Camera", resized_frame2)
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print("保存图片:", save_name2)
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break
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# 结束线程
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capture.release()
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if __name__ == '__main__':
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cam1 = "USB Camera"
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cam2 = "PC Camera"
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webcams = list_webcams()
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print(webcams)
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target_width = 1024
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target_height = 768
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save_path = "data/images/"
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# 加载ONNX模型
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session = onnxruntime.InferenceSession("model/loading.onnx")
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# 摄像头索引号，通常为0表示第一个摄像头
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camera_index = webcams.get(cam1)
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print("第一个摄像头索引：" + str(camera_index))
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modelmeta = session.get_modelmeta()
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metadata_map = modelmeta.custom_metadata_map
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classes = eval(metadata_map['names'])
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# 打开摄像头
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cap = cv2.VideoCapture(camera_index, cv2.CAP_DSHOW)
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# 设置分辨率
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# cap.set(cv2.CAP_PROP_FRAME_WIDTH, 3840) # 宽度
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# cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 2160) # 高度
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# 检查摄像头是否成功打开
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if not cap.isOpened():
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print("无法打开摄像头")
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exit()
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width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
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height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
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print("摄像头分辨率:", width, "x", height)
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# 目标图像尺寸
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# 计时器
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frame_count = 0
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start_time = time.time()
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stime = time.time()
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if not os.path.exists(save_path):
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os.makedirs(save_path)
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class_old = "1"
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count = 0
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status = "没有上料"
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# 循环读取摄像头画面
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while True:
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# 睡眠100毫秒
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time.sleep(0.1)
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ret, frame = cap.read()
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if not ret:
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print("无法读取摄像头画面")
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break
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resized_frame = frame
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if height > target_height and width > target_width:
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# 1920*1080的图像，中心裁剪640*480的区域
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a = int(height / 2 - target_height / 2)
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b = int(height / 2 + target_height / 2)
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c = int(width / 2 - target_width / 2)
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d = int(width / 2 + target_width / 2)
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print(a, b, c, d)
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cropped_frame = frame[a:b, c:d]
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# 调整图像尺寸
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resized_frame = cv2.resize(cropped_frame, (target_width, target_height))
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# 获取当前时间
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current_time = time.time()
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# 如果距离上一次保存已经过去1秒，则保存当前画面
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# if current_time - start_time >= 3.0:
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# # 生成保存文件名，以当前时间命名
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# save_name = time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".jpg"
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# # 保存调整尺寸后的图片
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# cv2.imwrite(save_path + save_name, frame)
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# print("保存图片:", save_name)
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# # 重置计时器
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# start_time = time.time()
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# 预处理
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blob = cv2.dnn.blobFromImage(resized_frame, 1 / 255.0, (640, 640), swapRB=True, crop=False)
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# 模型推理
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outputs = session.run(None, {session.get_inputs()[0].name: blob})
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#
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# print(outputs)
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# 应用softmax函数
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probabilities = outputs[0]
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# 找到最大概率的类别
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predicted_class = np.argmax(probabilities, axis=1)[0]
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max_probability = np.max(probabilities, axis=1)[0]
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class_ = classes[predicted_class]
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# 计算类型重复的次数，类别更换之后重新计数
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if class_ != class_old:
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count = 0
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else:
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count += 1
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class_old = class_
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print(f"{class_}:{count}: {max_probability}")
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# 判断是否上料并且上料次数大于10次
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if class_ == "shangliao" and count > 10:
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status = "正在上料"
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# 每隔3秒取一帧图像
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# 如果距离上一次保存已经过去1秒，则保存当前画面
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if current_time - stime >= 10.0:
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save_name = time.strftime("%Y%m%d%H%M%S", time.localtime()) + ".jpg"
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# 保存调整尺寸后的图片
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cv2.imwrite(save_path + "1/" + save_name, resized_frame)
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# 重置计时器
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stime = time.time()
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get_image()
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else:
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status = "没有上料"
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print(status)
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# # 找到概率较高的前十个类别
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# top_ten_classes = np.argsort(probabilities, axis=1)[0][-1:]
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#
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# # 输出前十个类别
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# print("Top 5 Classes:")
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# for i in top_ten_classes:
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# print(f"{classes[i]}: {probabilities[0][i]}")
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# 计算帧速率
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frame_count += 1
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end_time = time.time()
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elapsed_time = end_time - start_time
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fps = frame_count / elapsed_time
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# print(f"FPS: {fps:.2f}")
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# 将FPS绘制在图像上
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cv2.putText(resized_frame, f"FPS: {fps:.2f}", (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255), 2,
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cv2.LINE_AA)
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# 显示画面
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cv2.imshow("Camera", resized_frame)
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# 检测按键，如果按下q键则退出循环
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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# 关闭摄像头
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cap.release()
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# 关闭所有窗口
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cv2.destroyAllWindows()
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