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                本文介紹如何使用OpenCV檢測人臉,并且給出示例,本平臺仍然采用的是?Jetson TK1。 ### 1、測試攝像頭 為了能夠從攝像頭中實時檢測出人臉,首先要做的就是判斷你的攝像頭是否可以工作,其基本方法如下: ~~~ sudo apt-get install luvcview luvcview ~~~ ![](https://box.kancloud.cn/2016-05-07_572d61748bbf0.jpg) ![](https://box.kancloud.cn/2016-05-07_572d6174a8b3b.jpg) 如果攝像頭可以正常工作,則出現如下界面: ![](https://box.kancloud.cn/2016-05-07_572d6174bb0a9.jpg) ### 2、安裝OpenCV 參考網址:[圖文詳解OpenCV在Jetson TK1上的安裝和使用](http://blog.csdn.net/frd2009041510/article/details/42930113) ### 3、新建工作文件夾并拷貝源碼編譯 ~~~ mkdir ~/faceActivatedGPIO cd ~/faceActivatedGPIO ~~~ ![](https://box.kancloud.cn/2016-05-07_572d6175036bc.jpg) ~~~ cp ~/opencv/samples/gpu/cascadeclassifier.cpp . g++ cascadeclassifier.cpp -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_calib3d -lopencv_contrib -lopencv_features2d -lopencv_flann -lopencv_gpu -lopencv_legacy -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_video -lopencv_videostab -o cascadeclassifier ~~~ ![](https://box.kancloud.cn/2016-05-07_572d61751e2c1.jpg) ![](https://box.kancloud.cn/2016-05-07_572d61753579e.jpg) ### 4、運行得到實驗結果 ~~~ ./cascadeclassifier --cascade ~/opencv-2.4.9/data/haarcascades/haarcascade_frontalface_alt.xml --camera 0 ~~~ ![](https://box.kancloud.cn/2016-05-07_572d61754a74a.jpg) ![](https://box.kancloud.cn/2016-05-07_572d6175640ac.jpg)
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