Constantin S's profile - activity

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2013-04-05 12:04:12 -0600	asked a question	First CUDA Call Takes Over 45 Seconds All, the title describes my problem. I know the that the first CUDA call initializes a ton of CUDA contexts, but on my CARMA Devboard this takes over 45 second. The first call to a `cv::gpu::Mat` which actually constructs the memory blocks for a very long time. Is this normal? Is there a way to speed it up? Is this caused by JIT compiling cuda object files? Thank you
2013-04-05 12:01:59 -0600	commented answer	Compiling OpenCV 2.4.4a - Java Test Fails That didn't work for me, as the flag does not exist in any of the CMake files.
2013-03-13 20:43:26 -0600	commented question	Problem with cvCalcHist How does cvCalcHist know how many frames are in your arrays?
2013-03-13 20:36:32 -0600	answered a question	Compiling OpenCV 2.4.4a - Java Test Fails Very Active Q & A ... Anyways my solution was to blow away the source directory in `modules/java` with a nice little `rm -rf java` Seriously...
2013-03-13 20:34:56 -0600	received badge	● Editor (source)
2013-03-13 20:34:08 -0600	asked a question	cvCvtColor Throws Exception With IplImage I am having a similar problem to http://answers.opencv.org/question/4914/trooble-with-opencv-with-cvarrtomat/ I am filling an IplImage with a PPM I have parsed. I am very sure that the RGB and BGR are flipped. The red and blue bars are flipped in the OpenCV window while my GIMP window shows the original picture. The following call fails: `cvCvtColor(&display_image, &display_image, CV_BGR2RGB);` with: `OpenCV Error: Bad argument (Unknown array type) in cvarrToMat, file /home/constantin/Libraries/OpenCV-2.4.3/modules/core/src/matrix.cpp, line 697 terminate called after throwing an instance of 'cv::Exception' what(): /home/constantin/Libraries/OpenCV-2.4.3/modules/core/src/matrix.cpp:697: error: (-5) Unknown array type in function cvarrToMat` If I comment the call out the image displays but the colors are obviously incorrect. Could anyone offer any advice?
2013-03-12 15:49:14 -0600	received badge	● Critic (source)
2013-03-12 01:29:18 -0600	received badge	● Student (source)
2013-03-11 16:01:41 -0600	commented question	Compiling OpenCV 2.4.4a - Java Test Fails This problem is incredibly unnerving as OpenCV is a very large library that doesn't build very quickly. I am attempting to reuse builds but I continuously have to recompile a few modules only to return to this problem. I have tried many flags.
2013-03-11 15:43:15 -0600	asked a question	Compiling OpenCV 2.4.4a - Java Test Fails All, I am attempting to build OpenCV 2.4.4a. I have built OpenCV many times but it seems like the newest distribution has malfunctioning build code. My compilation fails at: `[ 87%] Build Java tests Buildfile: .../OpenCV-2.4.4/release/modules/java/test/.build/build.xml build: compile: [javac] Compiling 104 source files to .../OpenCV-2.4.4/release/modules/java/test/.build/build/classes BUILD FAILED .../OpenCV-2.4.4/release/modules/java/test/.build/build.xml:55: The following error occurred while executing this line: .../OpenCV-2.4.4/release/modules/java/test/.build/build.xml:19: .../OpenCV-2.4.4/release/modules/java/test/.build/lib does not exist.` I have tried finding information on how to disable this java library, I have no use for it. Can anyone offer some advice?