2013-03-18 09:28:42 -0600 | commented answer | opencv cannot access my webcam I did what you asked to do but it isn't accessing the camera still. It built fine but when running, it still showed a blank gray screen. I am using a lenevo thinkpad L420 and ubuntu 12.04 |
2013-01-22 09:50:39 -0600 | commented question | Camera is not working in OpenCV on Ubuntu 12.04 with version 2.3.1 or 2.4.2 Exactly the same problem I am facing- Cheese and Skype are able to recognize the camera but the sample code is not. |
2013-01-22 08:52:00 -0600 | received badge | ● Supporter (source) |
2013-01-21 12:07:59 -0600 | answered a question | Error on building OpenCV-2.4.3 on ubuntu 12.04 I too have tried to build using what you have done, it didn't seem like it went anywhere, and I don't remember if by running cmake, as you did above, any good came of it. What I do now, though, is run cmake in individual folders on individual .cpp files as and when I need them. It is seems to be working well. But I have just started and don't know if the problem may amplify later. Any how I will describe what I do below. Go the folder where the .cpp file is stored. Right click and open a new Document. Call it 'CMakeLists.txt'. It is very important that you call it precisely that. Open the document and paste this.
Where you replace 'name_of_cpp ' with the name of your cpp file. Next you open terminal and go the folder using cd. Once you are there type in 'cmake ." Note:there is a space between cmake and the '.' . After that type in 'make'. You should see an executable being formed. Some executables require you to parse it an image file from command line. If u have the image in the same folder then you can run the executable using
or else, you can pass the image using its relative position to the active folder by using /../../image.jpg I think it should lie somewhere in the parent folder for this to work. (correct me if wrong). and last way is to give the absolute address in relation to home. |