25、图像翻转

![=video](https://video.yahboom.top/40f912ef477171f0a83f5017e1f80102/4407819f824647bc9728a8d2b56f09a8-b3c3c03c1d00ccc944a1e74165ed6fd9-od-S00000001-200000.mp4)

未翻转前的摄像头捕获到的图像如图所示：

![image-20250207191401640](/media/202512/6c8853ebd97347cdb71309d58801d9c03068.png)

## 摄像头水平镜像（翻转）

### API描述

sensor.set\_hmirror

**描述**

配置图像传感器是否进行水平镜像。

**语法**

sensor.set\_hmirror(enable)

**参数**

参数名称

描述

输入/输出

enable

`True` 开启水平镜像功能 `False` 关闭水平镜像功能

输入

**返回值**

返回值

描述

无

**举例**

sensor.set\_hmirror(True)

### 例程

代码位于 \[源码汇总 / 02.Basic /18.1\_sensor\_hmirror.py\]

"""

Camera preview demo

摄像头预览演示

This script initializes camera sensor, displays preview and handles cleanup

本脚本初始化摄像头传感器、显示预览并处理清理工作

"""

import sys

import uos as os

import time

from media.sensor import \*

from media.display import \*

from media.media import \*

def init\_sensor():

"""

Initialize camera sensor with specified configuration

使用指定配置初始化摄像头传感器

"""

\# Create sensor instance with resolution 1280x960

\# 创建分辨率为1280x960的传感器实例

sensor = Sensor(width\=1280, height\=960)

\# Reset sensor to default state

\# 将传感器重置为默认状态

sensor.reset()

\# Configure channel 1 output format to 640x480 RGB565

\# 配置通道1输出格式为640x480 RGB565

sensor.set\_framesize(width\=640, height\=480, chn\=CAM\_CHN\_ID\_1)

sensor.set\_pixformat(Sensor.RGB565, chn\=CAM\_CHN\_ID\_1)

sensor.set\_hmirror(True)

return sensor

def main():

"""

Main function to run camera preview

运行摄像头预览的主函数

"""

sensor = None

try:

\# Initialize camera sensor

\# 初始化摄像头传感器

sensor = init\_sensor()

\# Initialize virtual display with 640x480 resolution

\# 初始化640x480分辨率的虚拟显示

Display.init(Display.VIRT, width\=640, height\=480, to\_ide\=True)

\# Initialize media management

\# 初始化媒体管理

MediaManager.init()

\# Start sensor operation

\# 启动传感器运行

sensor.run()

\# Main loop to capture and display frames

\# 捕获和显示帧的主循环

while True:

\# Capture frame from channel 1

\# 从通道1捕获帧

img = sensor.snapshot(chn\=CAM\_CHN\_ID\_1)

\# Display captured frame

\# 显示捕获的帧

Display.show\_image(img)

except KeyboardInterrupt:

print("User interrupted the program")

print("用户中断了程序")

except Exception as e:

print(f"An error occurred: {str(e)}")

print(f"发生错误: {str(e)}")

finally:

\# Cleanup section

\# 清理部分

\# Stop sensor if initialized

\# 如果传感器已初始化则停止

if isinstance(sensor, Sensor):

sensor.stop()

\# Deinitialize display

\# 反初始化显示

Display.deinit()

\# Enable sleep mode

\# 启用睡眠模式

os.exitpoint(os.EXITPOINT\_ENABLE\_SLEEP)

time.sleep\_ms(100)

\# Release media resources

\# 释放媒体资源

MediaManager.deinit()

if \_\_name\_\_ == "\_\_main\_\_":

main()

例程执行效果：

![image-20250207191146626](/media/202512/2be1b4169e6440a4be8f25aece2efe9f6235.png)

## 摄像头垂直翻转

### API 描述

sensor.set\_vflip