1. Sensor例程讲解#
1. 概述#
K230有3路MIPI-CSI(3x2 lane/1x4+1x2 lane)输入,最多可接3路摄像头,每路摄像头支持3个通道输出不同的分辨率及图像格式
2. 示例#
2.1 获取单摄3个通道图像显示在HDMI显示器#
打开摄像头,获取3个通道的图像显示在HDMI显示器
通道0采集1080P图像,通道1和通道2采集VGA分辨率图像并叠加在通道0图像上
# Camera示例
import time, os, sys
from media.sensor import *
from media.display import *
from media.media import *
sensor = None
try:
print("camera_test")
# 按照默认配置构建Sensor对象
sensor = Sensor()
# sensor复位
sensor.reset()
# 设置水平镜像
# sensor.set_hmirror(False)
# 设置垂直翻转
# sensor.set_vflip(False)
# 设置通道0分辨率, 1920x1080
sensor.set_framesize(Sensor.FHD)
# 设置通道0格式
sensor.set_pixformat(Sensor.YUV420SP)
# 绑定通道0到显示VIDEO1层
bind_info = sensor.bind_info()
Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO1)
# 设置通道1分辨率和格式
sensor.set_framesize(width = 640, height = 480, chn = CAM_CHN_ID_1)
sensor.set_pixformat(Sensor.RGB888, chn = CAM_CHN_ID_1)
# 设置通道2分辨率和格式
sensor.set_framesize(width = 640, height = 480, chn = CAM_CHN_ID_2)
sensor.set_pixformat(Sensor.RGB565, chn = CAM_CHN_ID_2)
# 这里设置hdmi和IDE输出显示,如果您选择的屏幕无法点亮,请参考API文档中的K230_CanMV_Display模块API手册自行配置
Display.init(Display.LT9611, to_ide = True, osd_num = 2)
# 初始化media manager
MediaManager.init()
# 启动sensor
sensor.run()
while True:
os.exitpoint()
img = sensor.snapshot(chn = CAM_CHN_ID_1)
Display.show_image(img, alpha = 128)
img = sensor.snapshot(chn = CAM_CHN_ID_2)
Display.show_image(img, x = 1920 - 640, layer = Display.LAYER_OSD1)
except KeyboardInterrupt as e:
print("user stop: ", e)
except BaseException as e:
print(f"Exception {e}")
finally:
# 停止sensor
if isinstance(sensor, Sensor):
sensor.stop()
# 销毁display
Display.deinit()
os.exitpoint(os.EXITPOINT_ENABLE_SLEEP)
time.sleep_ms(100)
# 释放media缓冲区
MediaManager.deinit()
2.2 获取双摄图像显示在HDMI显示器#
分别配置2个摄像头输出960x540图像,并排显示在HDMI显示器
# Camera 双摄示例
import time, os, sys
from media.sensor import *
from media.display import *
from media.media import *
sensor0 = None
sensor1 = None
try:
print("camera_test")
# 按照默认配置构建Sensor对象sensor0
sensor0 = Sensor(id = 0)
# sensor0复位
sensor0.reset()
# 设置通道0分辨率, 960*540
sensor0.set_framesize(width = 960, height = 540)
# 设置通道0格式为YUV420
sensor0.set_pixformat(Sensor.YUV420SP)
# 绑定通道0到显示VIDEO1层
bind_info = sensor0.bind_info(x = 0, y = 0)
Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO1)
# 按照默认配置构建Sensor对象sensor1
sensor1 = Sensor(id = 1)
# sensor1复位
sensor1.reset()
# 设置通道0分辨率, 960*540
sensor1.set_framesize(width = 960, height = 540)
# 设置通道0格式为YUV420
sensor1.set_pixformat(Sensor.YUV420SP)
# 绑定通道0到显示VIDEO2层
bind_info = sensor1.bind_info(x = 960, y = 540)
Display.bind_layer(**bind_info, layer = Display.LAYER_VIDEO2)
# 这里设置hdmi和IDE输出显示,如果您选择的屏幕无法点亮,请参考API文档中的K230_CanMV_Display模块API手册自行配置
Display.init(Display.LT9611, to_ide = True)
# 初始化media manager
MediaManager.init()
# 多摄场景仅需要执行一次run
sensor0.run()
while True:
os.exitpoint()
time.sleep(1)
except KeyboardInterrupt as e:
print("user stop")
except BaseException as e:
print(f"Exception '{e}'")
finally:
# 多摄场景下,每个sensor都需要执行stop
if isinstance(sensor0, Sensor):
sensor0.stop()
if isinstance(sensor1, Sensor):
sensor1.stop()
# 或者执行Sensor.deinit()
# Sensor.deinit()
# 销毁 display
Display.deinit()
os.exitpoint(os.EXITPOINT_ENABLE_SLEEP)
time.sleep_ms(100)
# 释放 media 缓冲区
MediaManager.deinit()
提示
Sensor模块具体接口请参考API文档