哈哈，在ARM树莓派上终于配置好了opencv

折腾了2天，之前对linux一点不通，所以整个过程都是摸石头过河。树莓派实际上是一个嵌入式linux开发版，所以需要在opencv官网上下载Linux版本的opencv3.0，然后在linux下解压，编译过程第一次比较复杂，大概用了2小时多才编译完成。

除此之外，还安装了linux版的Qt5.3

树莓派

外接usb摄像头

关闭摄像头

MyWindow.pro文件
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#-------------------------------------------------
#
# Project created by QtCreator 2017-01-05T15:14:18
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = MyWindow
TEMPLATE = app
SOURCES += main.cpp\
mywindow.cpp
HEADERS += mywindow.h
FORMS += mywindow.ui
INCLUDEPATH += /usr/local/include\
INCLUDEPATH += /usr/local/include/openv
INCLUDEPATH += /usr/local/include/opencv2
LIBS += -L/usr/local/lib \
-lopencv_calib3d \
-lopencv_core \
-lopencv_features2d \
-lopencv_flann \
-lopencv_highgui \
-lopencv_imgproc \
-lopencv_imgcodecs\
-lopencv_ml \
-lopencv_objdetect \
-lopencv_video\
-lopencv_videoio

opencv打开树莓派的USB相机时 Videocapture cap(0)不是cap(1)

背景图片