2019-01-21 21:22:33 -0600 | received badge | ● Good Answer (source) |
2017-12-31 11:59:51 -0600 | received badge | ● Nice Answer (source) |
2017-10-17 13:45:57 -0600 | received badge | ● Good Answer (source) |
2017-08-29 15:30:10 -0600 | received badge | ● Civic Duty |
2017-08-15 10:38:43 -0600 | received badge | ● Good Answer (source) |
2016-09-04 12:21:53 -0600 | received badge | ● Nice Answer (source) |
2016-01-19 03:34:45 -0600 | received badge | ● Nice Answer (source) |
2015-03-03 21:24:45 -0600 | received badge | ● Nice Answer (source) |
2014-12-29 09:49:32 -0600 | received badge | ● Good Answer (source) |
2014-10-13 05:54:22 -0600 | received badge | ● Nice Answer (source) |
2014-09-28 04:11:09 -0600 | received badge | ● Good Answer (source) |
2014-09-26 10:26:29 -0600 | commented answer | OpenCV .so library for Android If you link against OpenCV statically, you do not need this call. Everything that is needed has been already added by linker. |
2014-07-10 09:16:37 -0600 | received badge | ● Nice Answer (source) |
2014-06-28 12:02:11 -0600 | commented answer | VideoCapture::set() memory leak Fill free to contribute your fix to OpenCV via pull request on Github: http://code.opencv.org/projects/opencv/wiki/How_to_contribute. |
2014-06-15 04:59:12 -0600 | edited question | Question about using VideoCapture API on specifc I used VideoCapture API on android to grab frame. I think that this API is working well on JellyBean device(android version 4.1.2) But there is crash problem kitkat device(android version 4.4.2 GalaxyS4) I don't know exactly cause of problems Can you check my log when having crash? (more) |
2014-06-14 16:30:59 -0600 | received badge | ● Good Answer (source) |
2014-06-04 12:51:08 -0600 | answered a question | OpenCV video writer changes video on save Most of video compressing encoders process video in YUV color space, but not in RGB. Also video compression in most cases is loosy compression. It means that encoder changes pixel values to decrease data entropy and adopt frames for better compression. It is normal behavior. |
2014-06-04 12:42:13 -0600 | commented answer | OpenCV build options, big difference in speed after android library linking No, It's not. Also such performance improvements can be result of TBB usage and some compiler flags that turn on automatic vectorization or some other indirect improvements. |
2014-06-01 03:41:35 -0600 | answered a question | OpenCV build options, big difference in speed after android library linking There is special OpenCV version targeted for Tegra SoC. It is closed source, provided by NVIDIA and distributed via OpenCV Manager. OpenCV for Tegra is optimized version of OpenCV and looks like OpenCV Manager provides it to you. In case of self-built binary you use general OpenCV code, no NVIDIA specific optimizations. Here is NVIDIA page about TADP and OpenCV for Tegra included. |
2014-05-06 23:35:37 -0600 | received badge | ● Guru (source) |
2014-05-06 23:35:37 -0600 | received badge | ● Great Answer (source) |
2014-05-04 11:20:59 -0600 | answered a question | Android Application Programming with OpenCV - HEAP MEMORY CORRUPTION The failure is a bug in OpenCV Native camera implementation for Android. Native camera is experimental api for camera access for native code without Java API. You have two ways to fix the issue
|
2014-04-14 04:42:04 -0600 | commented answer | libnative_camera compilation It is folder with libraries libbinder.so, libutils.so, etc for each platform. |
2014-04-12 03:10:52 -0600 | received badge | ● Nice Answer (source) |
2014-04-01 06:35:51 -0600 | received badge | ● Nice Answer (source) |
2014-03-27 23:53:05 -0600 | answered a question | unsatisfied link error in cascadeclassifier It looks like you try to use OpenCV (construct |
2014-03-27 23:13:01 -0600 | edited question | Segmentation fault on loading opencv_java248 I configured and compiled the OpenCV 2.4.8 distribution on RHEL 6.4. The configuration and compilation appears to have worked fine (after some struggling). However, when I load the library I get a segmentation fault. I've setup two different projects (in NetBeans and Eclipse) and I get exactly the same result. Here's the crash report: The error appears to be in the libpthread.so library. How should I approach debugging this? (more) |
2014-03-18 02:35:31 -0600 | answered a question | Change the resolution of a picture in JavaCamera JavaCamera view has android:layout_width="match_parent" android:layout_height="match_parent" attributes that ask view to scale image from camera to fit view. You just need to change sizing policy. |
2014-03-17 02:32:48 -0600 | commented answer | libopencv_java cannot be loaded anymore Remove |
2014-03-16 10:07:32 -0600 | answered a question | libopencv_java cannot be loaded anymore *.apk file is just a zip archive. You can extract it and check is there libopencv_java.so or not. |
2014-03-14 09:09:39 -0600 | received badge | ● Necromancer (source) |
2014-03-14 07:45:46 -0600 | answered a question | Initializing static cv::Mat with cv::Mat::zeros causes segmentation fault I've created an issue on code.opencv.org. |
2014-03-14 07:29:03 -0600 | commented answer | Using OpenCV in GNU Octave Unfortunately I have never use Matlab bindings, so I cannot help with it. |
2014-02-26 05:51:17 -0600 | received badge | ● Nice Answer (source) |
2014-02-25 22:59:56 -0600 | received badge | ● Nice Answer (source) |
2014-01-25 12:07:47 -0600 | commented answer | Which Android phones support CUDA There are some devices based on Quallcomm S800 that supports OpenCL, but there is is some issue here. This SoC supports OpenCL 1.1 Embedded Profile. Ocl module in OpenCV is designed for full profile and mostly does not work on S800 SoC. You have to make some customizations to use OpenCV ocl module. |
2014-01-25 08:20:05 -0600 | received badge | ● Nice Answer (source) |
2014-01-19 06:29:51 -0600 | commented answer | Open CV support for WinRT and Windows Phone8 The script uses Ninja tool for building. Try to install Ninja build tool or change build tool. You need to edit cmake_winrt.cmd and change project generator from -GNinja to -G "NMake Makefiles" |
2014-01-19 06:26:01 -0600 | edited answer | Open CV support for WinRT and Windows Phone8 I find this page opencv/wiki/WindowsRT but I can't build anything. The path to VS 11 is wrong and when I have correct that and other little errors I got this: I don't know enought how to use CMake so I'm be halted by this. So I can't tell you how well this thing go. |
2014-01-19 06:23:38 -0600 | answered a question | Which Android phones support CUDA The only mobile processor that supports CUDA right now is NVidia Tegra K1. As I know, there is no consumer device with the SoC right now, engineering boards only. |
2014-01-16 09:10:43 -0600 | received badge | ● Nice Answer (source) |
2014-01-10 00:19:45 -0600 | answered a question | AVI file created by OpenCV 2.4.6 not always valid when app exits There were some synchronization issue in OpenCV 2.4.6 and may be earlier releases. It had been fixed in 2.4.7 or 2.4.8 release, but we did not get response from issue author. Could you update OpenCv up to 2.4.8 and check the issue status. If it`s fixed, I close the issue. |
2014-01-09 23:59:59 -0600 | commented answer | What Android 4.1.3 or newer device did you use to test OpenCV 2.4.7? Do you install OpenCV Manager from SDK? You need to use OpenCV Manager 2.16. |
2014-01-04 02:04:53 -0600 | answered a question | How to start learning android application using opencv |
2013-12-30 02:22:14 -0600 | answered a question | Cross compile opencv raspberry pi You've built OpenCV as a shared library. So, you need to install it on device to run your app. Cross compilation is rather faster then native compilation on RPi. |
2013-12-30 01:45:06 -0600 | answered a question | OpenCV .so library for Android Yes, it is possible. Add OPENCV_LIB_TYPE:=STATIC before including OpenCV.mk in your Android.mk. This string enables static linkage with OpenCV. Linker removes all unused classes and functions automatically. You cannot build the singe shared library for all architectures. If you set target architecture to all in Application.mk you've got one shared library per architecture. |
2013-12-30 01:41:27 -0600 | answered a question | Odroid hardware acceleration OpenCV uses popular video decoding/encoding libraries for video i/o support. If you use Linux it can be FFMPEG, GStreamer, Xine, etc. If you want to use hardware acceleration you need hardware accelerated version of video library. For example, if you have somw plug-in for GStreamer, install it and build OpenCV with GStreamer support. |
2013-12-29 05:39:05 -0600 | commented answer | What Android 4.1.3 or newer device did you use to test OpenCV 2.4.7? The problem was cased some issue in private Tegra optimizations. Right now, the issue has been fixed and tested on several Samsung devices with Android 4.3. |
2013-12-29 05:37:15 -0600 | answered a question | Trying to run OpenCV samples on Samsung Galaxy S4: dark screen OpenCV4Android 2.4.8 SDK with the issue fix has been already published. You can install fixed Manager apks from SDK or beta testing package from Google Play. OpenCV team uses this feature to publish new packages. The new version of Manager is published as beta for developers first. If there is no issues, we publish it in production in a week or two. It is done to decrease impact of any regressions for end application users. |