save_dir = os.path.join(os.getcwd(), 'saved_models')什么意思
时间: 2023-06-04 20:05:59 浏览: 260
?这行代码的意思是将当前工作目录和'saved_models'合并成一个路径字符串,用于存储训练好的模型。具体来说,该代码将返回一个名为'saved_models'的文件夹的路径,该文件夹位于当前工作目录下。
相关问题
save_dir = os.path.join(os.getcwd(), 'saved_models') filepath = "model_{epoch:02d}-{val_acc:.2f}.hdf5" checkpoint = ModelCheckpoint(os.path.join(save_dir, filepath), monitor='val_acc',verbose=1, save_best_only=True)
这段代码是用来设置模型检查点的。在训练深度学习模型时,我们通常会在每个 epoch 结束时评估模型在验证集上的表现。为了避免过拟合,我们可以在验证集上表现最好的模型进行保存。这就是所谓的“检查点”。
在这段代码中,我们首先定义了一个保存模型的目录 `save_dir`,它是当前工作目录下的 `saved_models` 目录。然后我们定义了一个文件名 `filepath`,它包含了两个变量 `epoch` 和 `val_acc`,分别表示当前模型所处的 epoch 数和在验证集上的准确率。这样每个 epoch 结束时,Keras 就会将模型保存到 `save_dir` 目录下,并且文件名会包含当前 epoch 数和验证集准确率。
最后,我们使用 `ModelCheckpoint` 该类来设置检查点。`monitor` 参数指定了需要监控的指标,这里是验证集准确率;`verbose` 参数指定了日志输出的详细程度,这里设置为 1 表示输出较详细;`save_best_only` 参数指定是否只保存在验证集上表现最好的模型。
使用QTimer对象代替QBasicTimer对象,修改程序class MyWindow(QWidget): def init(self): super().init() self.thread_list = [] self.color_photo_dir = os.path.join(os.getcwd(), "color_photos") self.depth_photo_dir = os.path.join(os.getcwd(), "depth_photos") self.image_thread = None self.saved_color_photos = 0 # 定义 saved_color_photos 属性 self.saved_depth_photos = 0 # 定义 saved_depth_photos 属性 self.init_ui() def init_ui(self): self.ui = uic.loadUi("C:/Users/wyt/Desktop/D405界面/intelrealsense1.ui") self.open_btn = self.ui.pushButton self.color_image_chose_btn = self.ui.pushButton_3 self.depth_image_chose_btn = self.ui.pushButton_4 self.open_btn.clicked.connect(self.open) self.color_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit, "color")) self.depth_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit_2, "depth")) def open(self): self.profile = self.pipeline.start(self.config) self.is_camera_opened = True self.label.setText('相机已打开') self.label.setStyleSheet('color:green') self.open_btn.setEnabled(False) self.close_btn.setEnabled(True) self.image_thread = ImageThread(self.pipeline, self.color_label, self.depth_label, self.interval, self.color_photo_dir, self.depth_photo_dir, self._dgl) self.image_thread.saved_color_photos_signal.connect(self.update_saved_color_photos_label) self.image_thread.saved_depth_photos_signal.connect(self.update_saved_depth_photos_label) self.image_thread.start() def chose_dir(self, line_edit, button_type): my_thread = MyThread(line_edit, button_type) my_thread.finished_signal.connect(self.update_line_edit) self.thread_list.append(my_thread) my_thread.start()
以下是使用QTimer对象代替QBasicTimer对象的修改后的代码:
```python
from PyQt5.QtCore import QTimer
class MyWindow(QWidget):
def __init__(self):
super().__init__()
self.thread_list = []
self.color_photo_dir = os.path.join(os.getcwd(), "color_photos")
self.depth_photo_dir = os.path.join(os.getcwd(), "depth_photos")
self.image_thread = None
self.saved_color_photos = 0
self.saved_depth_photos = 0
self.init_ui()
def init_ui(self):
self.ui = uic.loadUi("C:/Users/wyt/Desktop/D405界面/intelrealsense1.ui")
self.open_btn = self.ui.pushButton
self.color_image_chose_btn = self.ui.pushButton_3
self.depth_image_chose_btn = self.ui.pushButton_4
self.open_btn.clicked.connect(self.open)
self.color_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit, "color"))
self.depth_image_chose_btn.clicked.connect(lambda: self.chose_dir(self.ui.lineEdit_2, "depth"))
def open(self):
self.profile = self.pipeline.start(self.config)
self.is_camera_opened = True
self.label.setText('相机已打开')
self.label.setStyleSheet('color:green')
self.open_btn.setEnabled(False)
self.close_btn.setEnabled(True)
self.image_thread = ImageThread(self.pipeline, self.color_label, self.depth_label, self.interval, self.color_photo_dir, self.depth_photo_dir, self._dgl)
self.image_thread.saved_color_photos_signal.connect(self.update_saved_color_photos_label)
self.image_thread.saved_depth_photos_signal.connect(self.update_saved_depth_photos_label)
self.image_thread.start()
self.timer = QTimer(self) # 创建QTimer对象
self.timer.timeout.connect(self.update) # 连接timeout信号与槽函数
self.timer.start(100) # 启动定时器,间隔为100ms
def update(self):
# 检查所有的线程是否已完成,并从线程列表中移除已完成的线程
for thread in self.thread_list:
if not thread.isRunning():
self.thread_list.remove(thread)
def chose_dir(self, line_edit, button_type):
my_thread = MyThread(line_edit, button_type)
my_thread.finished_signal.connect(self.update_line_edit)
self.thread_list.append(my_thread)
my_thread.start()
def update_saved_color_photos_label(self, count):
self.saved_color_photos = count
self.ui.label_5.setText(str(self.saved_color_photos))
def update_saved_depth_photos_label(self, count):
self.saved_depth_photos = count
self.ui.label_6.setText(str(self.saved_depth_photos))
```
阅读全文