green_color = [0, 255, 0] # 绿色 alpha = 0.3 # 掩膜透明度 output_image = image.copy() mask_coord = np.where(shadow_mask) output_image[..., mask_coord[0], mask_coord[1]] = ( output_image[..., mask_coord[0], mask_coord[1]] * (1 - alpha) + np.array(green_color)[:, np.newaxis, np.newaxis] * alpha )这段代码怎么改可以避免以下错误shape mismatch: value array of shape (3,3,7075200) could not be broadcast to indexing result of shape (3,7075200)
时间: 2024-03-11 22:48:08 浏览: 22
这段代码中出现错误的原因是 `output_image[..., mask_coord[0], mask_coord[1]]` 的形状为 `(3, 7075200)`,而 `(3, 3, 7075200)` 的数组 `(np.array(green_color)[:, np.newaxis, np.newaxis] * alpha)` 无法与之广播。可以使用 `np.ix_` 函数来避免这个问题。
下面是修改后的代码:
```python
green_color = [0, 255, 0] # 绿色
alpha = 0.3 # 掩膜透明度
output_image = image.copy()
mask_coord = np.where(shadow_mask)
# 修改代码开始
output_image[np.ix_(range(3), mask_coord[0], mask_coord[1])] = (
output_image[np.ix_(range(3), mask_coord[0], mask_coord[1])] * (1 - alpha)
+ np.array(green_color)[:, np.newaxis, np.newaxis] * alpha
)
# 修改代码结束
```
这里使用 `np.ix_` 函数将 `(3, 7075200)` 的数组广播到 `(3, 3, 7075200)` 的数组上。
相关问题
给下列代码添加注释: if reached == False and color == True: green_light = rospy.Publisher('/traffic_light',Bool,queue_size=10) # ture检测到绿灯 signal.signal(signal.SIGINT,quit) signal.signal(signal.SIGTERM,quit) green_exist = 0 light_xy = np.column_stack(np.where(light_img == 255)) light_x = light_xy[:,0] exist = np.mean(light_x) if np.isnan(exist): green_exist = 0 else: green_exist = len(light_x) if (green_exist == 0): green_light.publish(False) print("stop") else: green_light.publish(True) print("pass")
```python
# 检查是否达到了特定条件并且颜色为绿色
if reached == False and color == True:
green_light = rospy.Publisher('/traffic_light', Bool, queue_size=10) # 创建一个用于发布Bool类型数据的ROS主题,用于检测到绿灯
signal.signal(signal.SIGINT, quit) # 设置键盘中断信号处理函数为quit函数
signal.signal(signal.SIGTERM, quit) # 设置终止信号处理函数为quit函数
green_exist = 0 # 初始化绿灯存在的数量为0
light_xy = np.column_stack(np.where(light_img == 255)) # 获取灯光图像中白色像素点的坐标
light_x = light_xy[:, 0] # 获取灯光图像中白色像素点的x坐标
exist = np.mean(light_x) # 计算灯光图像中白色像素点x坐标的平均值
if np.isnan(exist): # 如果平均值不存在(即不存在白色像素点),绿灯存在的数量为0
green_exist = 0
else:
green_exist = len(light_x) # 绿灯存在的数量为白色像素点的数量
if green_exist == 0:
green_light.publish(False) # 发布False到ROS主题,表示停止
print("stop") # 打印"stop"
else:
green_light.publish(True) # 发布True到ROS主题,表示通过
print("pass") # 打印"pass"
```
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))
```
相关推荐
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)