Jetson Nano笔记
硬件平台:Jetson Nano
操作系统:Ubuntu 18.04
烧写系统:
安装时设置了十几个分区,造成Windows无法识别磁盘必须先用分区助手删除所有分区
摄像头调用:
def gstreamer_pipeline(
capture_width=1280,
capture_height=720,
display_width=1280,
display_height=720,
framerate=60,
flip_method=0,
):
return (
"nvarguscamerasrc ! "
"video/x-raw(memory:NVMM), "
"width=(int)%d, height=(int)%d, "
"format=(string)NV12, framerate=(fraction)%d/1 ! "
"nvvidconv flip-method=%d ! "
"video/x-raw, width=(int)%d, height=(int)%d, format=(string)BGRx ! "
"videoconvert ! "
"video/x-raw, format=(string)BGR ! appsink"
% (
capture_width,
capture_height,
framerate,
flip_method,
display_width,
display_height,
)
)
# 调用摄像头
cap = cv2.VideoCapture(gstreamer_pipeline(flip_method=0), cv2.CAP_GSTREAMER)
或者直接调用:
cap = cv2.VideoCapture("nvarguscamerasrc ! \
video/x-raw(memory:NVMM), \
width=(int)640, \
height=(int)480, \
format=(string)NV12, \
framerate=(fraction)60/1 ! \
nvvidconv flip-method=0 ! \
video/x-raw, \
width=(int)640, \
height=(int)480, \
format=(string)BGRx ! \
videoconvert ! \
video/x-raw, \
format=(string)BGR ! \
appsink",\
cv2.CAP_GSTREAMER)