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2014-10-29 10:26:50 -0600 | answered a question | Java: VideoCapture cannot open file Problem was the windows path variable. Can be set in the environment tab in the run configuration in Eclipse. (I set it to E:\opencv\opencv\build\x64\vc12\bin) |
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2014-10-24 21:03:48 -0600 | asked a question | Java: VideoCapture cannot open file I'm trying to extract a frame from a file. For the moment I'd be happy if any format would work, my goal is to apply my code to recorded webcam files (MJPEG). I downloaded and extraced the binaries (opencv-2.4.10) on my Windows 7 x64 machine running Java JDK 1.7.0_21 (x64). I'm using Eclipse and set it up: E:\opencv\opencv\build\java\opencv-2410.jar is in my classpath, the native path for that I tried E:\opencv\opencv\build\java\x64 and E:\opencv\opencv\build\x64\vc12\bin. My code is: I tried reading a file I downloaded (https://code.ros.org/trac/opencv/export/2270/trunk/opencv/samples/c/tree.avi), a file off my camera (MOV) and a AVI (MJPEG) I recorded off my ip camera using VLC - none of them can be opened. I can run the program but the output is always "Failure" / the file cannot be opened. What is wrong with my setup? I followed the documentation (http://docs.opencv.org/trunk/doc/tutorials/introduction/java_eclipse/java_eclipse.html) and can run the 3x3 example in there, but cannot open video files. |