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2015-01-09 13:55:48 -0500 commented question Opencv boost update gives unhandled exception

Hi, I have run into the exact same problem. Is there anyone who has successfully set update=true? Perhaps we should open a bug report

2014-10-16 10:35:22 -0500 received badge  Editor (source)
2014-10-16 10:34:43 -0500 asked a question Parameters for OpenCV alt2 haar cascade

Hello,

I have recently started training my own face detection haar cascades with OpenCV. I have a large collection of positive images (~3000) and negative images (~3000) but I am getting very poor results. I am worried that I am not setting the parameters properly and it is having a strong negative effect on my accuracy. To verify this, I have been looking for the parameters OpenCV used to train the alt2 haar cascade model (the most accurate face detection model). I have looked through the source and I don't think OpenCV releases these parameters by default. Does anyone know what they are?

Thanks so much!

2014-08-28 10:41:58 -0500 commented question Problems with OpenCV DFT function in C++

I am also trying to do the same thing. Has anyone been able to figure this out?

2013-08-27 12:33:14 -0500 asked a question Using opencv4Android with Qt 5.1.0

Hi all,

I have a large codebase written with Qt that uses OpenCV as its only dependency. I am interested in turning it into an app utilizing the new qt for android functionality. I am including all of the OpenCV libraries in my .pro file as shown below-

       ANDROID_OPENCV = C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native

LIBS += $$ANDROID_OPENCV/libs/x86/libopencv_contrib.a \ $$ANDROID_OPENCV/libs/x86/libopencv_legacy.a \ $$ANDROID_OPENCV/libs/x86/libopencv_ml.a \ $$ANDROID_OPENCV/libs/x86/libopencv_objdetect.a \ $$ANDROID_OPENCV/libs/x86/libopencv_calib3d.a \ $$ANDROID_OPENCV/libs/x86/libopencv_video.a \ $$ANDROID_OPENCV/libs/x86/libopencv_features2d.a \ $$ANDROID_OPENCV/libs/x86/libopencv_highgui.a \ $$ANDROID_OPENCV/libs/x86/libopencv_androidcamera.a \ $$ANDROID_OPENCV/libs/x86/libopencv_flann.a \ $$ANDROID_OPENCV/libs/x86/libopencv_imgproc.a \ $$ANDROID_OPENCV/libs/x86/libopencv_core.a \ $$ANDROID_OPENCV/3rdparty/libs/x86/liblibjpeg.a \ $$ANDROID_OPENCV/3rdparty/libs/x86/liblibpng.a \ $$ANDROID_OPENCV/3rdparty/libs/x86/liblibtiff.a \ $$ANDROID_OPENCV/3rdparty/libs/x86/liblibjasper.a \ $$ANDROID_OPENCV/3rdparty/libs/x86/libtbb.a

INCLUDEPATH += $$ANDROID_OPENCV/jni/include/

When I go to compile however I get this error-

C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::ExrDecoder(): error: undefined reference to 'Imf::Chromaticities::Chromaticities(Imath::Vec2<float> const&, Imath::Vec2<float> const&, Imath::Vec2<float> const&, Imath::Vec2<float> const&)' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::globalThreadCount()' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::InputFile::InputFile(char const, int)' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::InputFile::header() const' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::Header::dataWindow() const' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::InputFile::header() const' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::hasChromaticities(Imf::Header const&)' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::InputFile::header() const' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native/libs/x86/libopencv_highgui.a(grfmt_exr.cpp.o):/home/reports/.ccache/tmp/grfmt_exr.tmp.tegra-server.11358.ii:function cv::ExrDecoder::readHeader(): error: undefined reference to 'Imf::chromaticities(Imf::Header const&)' C:/Developer/OpenCV-2.4.6-android-sdk/sdk/native ... (more)

2013-08-27 12:25:06 -0500 commented question Error with OpenCVLibrary 2.4.6, org.opencv.R not found

Sorry about the hashtags it is my first time asking a question. Also reloading fixed the issue thanks!

2013-08-26 11:59:23 -0500 asked a question Error with OpenCVLibrary 2.4.6, org.opencv.R not found

Hello,

I am attempting to run the tutorial1Activity code but am unable to do so because the OpenCVLibrary cannot find org.opencv.R which doesn't seem to be included in the downloaded source code. I have all of the most recent versions of SDK, NDK, JDK, OpenCV4Android etc. am I missing something here?

Any help is appreciated thanks!!

Jordan