pycharm将逐帧图片展示在QLable中，滑块控制帧数

可以使用以下步骤将逐帧图片展示在QLabel中，并使用滑块控制帧数：

1. 导入必要的模块：

from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication, QLabel, QSlider, QVBoxLayout, QWidget

2. 创建一个QWidget窗口并设置布局：

app = QApplication([])
window = QWidget()

layout = QVBoxLayout()
window.setLayout(layout)

3. 创建一个QLabel用于显示图片：

image_label = QLabel()
image_label.setAlignment(Qt.AlignCenter)
layout.addWidget(image_label)

4. 创建一个QSlider用于控制帧数：

slider = QSlider(Qt.Horizontal)
slider.setRange(1, 30)
slider.setValue(10)  # 设置初始帧数为10
layout.addWidget(slider)

5. 加载图片序列，并使用QTimer定时器更新图片：

import os
from PyQt5.QtCore import QTimer

image_folder = 'path/to/folder/with/frames'
image_list = sorted(os.listdir(image_folder))
image_index = 0

def update_image():
    global image_index
    image_path = os.path.join(image_folder, image_list[image_index])
    pixmap = QPixmap(image_path)
    image_label.setPixmap(pixmap)
    image_index = (image_index + 1) % len(image_list)

timer = QTimer()
timer.timeout.connect(update_image)
timer.start(1000 // slider.value())  # 定时器每秒更新帧数

6. 连接QSlider的valueChanged信号，更新定时器的间隔时间：

def on_slider_value_changed(value):
    timer.setInterval(1000 // value)

slider.valueChanged.connect(on_slider_value_changed)

7. 显示窗口：

window.show()
app.exec_()

完整代码如下：

from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication, QLabel, QSlider, QVBoxLayout, QWidget
import os
from PyQt5.QtCore import QTimer

app = QApplication([])
window = QWidget()

layout = QVBoxLayout()
window.setLayout(layout)

image_label = QLabel()
image_label.setAlignment(Qt.AlignCenter)
layout.addWidget(image_label)

slider = QSlider(Qt.Horizontal)
slider.setRange(1, 30)
slider.setValue(10)
layout.addWidget(slider)

image_folder = 'path/to/folder/with/frames'
image_list = sorted(os.listdir(image_folder))
image_index = 0

def update_image():
    global image_index
    image_path = os.path.join(image_folder, image_list[image_index])
    pixmap = QPixmap(image_path)
    image_label.setPixmap(pixmap)
    image_index = (image_index + 1) % len(image_list)

timer = QTimer()
timer.timeout.connect(update_image)
timer.start(1000 // slider.value())

def on_slider_value_changed(value):
    timer.setInterval(1000 // value)

slider.valueChanged.connect(on_slider_value_changed)

window.show()
app.exec_()