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2019-07-01 12:49:04 -0600	received badge	● Notable Question (source)
2017-06-05 16:24:08 -0600	received badge	● Popular Question (source)
2013-05-28 03:52:04 -0600	received badge	● Student (source)
2013-05-25 09:17:08 -0600	asked a question	Mat and Mat_<double> Hello, Which are the differences between Mat and Mat_<double>? How can I convert a mat file to Mat_<double>?
2013-02-25 10:11:06 -0600	commented answer	Camara doesn't work in OpenCV The options V4I and gstreamer are already checked. I couldn't find the option V4L2. I builded the sample satarter_video but the message below has shown: Failed to open a video device or video file! I tried with number 0,1,2 and nothing worked.
2013-02-21 05:22:20 -0600	asked a question	Camara doesn't work in OpenCV Hi! I have tried to use OpenCV's samples that use camara, but it didn't work. I tested my webcam with the program Cheese and it's OK. I have installed some packeges too: sudo apt-get install libtbb2 libtbb-dev sudo apt-get install libavformat-dev libwscale-dev After that I rebuild my OpenCV in this way: cmake-gui I selected "BUILD_EXAMPLES" I clicked in "Configure" I clicked in "Generate" Unfutunally, anything working. I'm testing the sample bgfg_segm. I can use the video but the camara. What can I do?
2013-01-24 09:14:28 -0600	asked a question	How running bgfg_segm sample Hello, I tried to run bgfg_segm sample and this message has shown: `usage: ./bgfg_segm [--camera]=<use camera,if this key is present>, --file_name=[tree.avi]=<path to moviefile> -c,--camera=[true] use camera or not -fn, --file_name[tree.avi] moviefile can notopencamera or vide file` I tried this commands but I couldn't get it. I'm new in openCV and Ubuntu so I don't know the sintax very well. Can anyone give me a example using camera end tree.avi? tree.avi is in /OpenCV-2.2.0/samples/c/tree.avi. I don't know about the camara.
2013-01-21 20:10:16 -0600	asked a question	How copile OpenCV's samples that use camera? Hi, I'm trying to copile the file facerec_demo.cpp from samples but the webcam image doesn't appear. That message shows in terminal: usage: ./facerec_demo <csv.ext> What can I do?
2013-01-21 08:39:04 -0600	asked a question	facerec_demo doesn't work Hello, I have tried to copile the file facerec_demo.cpp from samples'Opencv and this message appears: usage: ./facerec_demo <csv.ext> And nothing happens. What can I do? I checked my webcan and it's working well.