Quantcast
Browsing latest articles
Browse All 135 View Live

How to install OpenCV on Windows xp 32 bit

I'm using Windows xp 32bit, and I have installed python 3.4 on it.. But I'm getting problem to install OpenCV - python on my system. I have tried to copy .pyd file in site libraries too but still it's...

View Article


Error in importing cv2 - Dll load failed :the specified procedure could not...

I'm using python 3.4 and I have successfully installed numpy and open cv, and I can import numpy with no error. But while importing cv2 it's says - Dll load failed :the specified procedure could not be...

View Article


Image Not Loading In OpenCV 4.x.x

I am not sure if I am the only one facing this issue. But In my machine, images are not loading in OpenCV 4.x.x. I have tried 4.0.0 (prebuilt x64 Windows binaries), 4.1.1(prebuilt x64 Windows binaries)...

View Article

samples.findfile for loading photos

Hello, I've downloaded openCV for python and am using it on Microsoft Visual Studio and am trying to use the tutorials. Often, they fetch a picture, src2 =...

View Article

OpenCv 4.1.2 Inference engin 2019 R3. readNetFromModelOptimizer crash

Windows 10. OpenCv 4.1.2 visual studio 2019 Openvino 2019 R3 Tensorflow SSD mobilenet Hi, I compiled opencv 412 with inference engine 2019 R3 by VS2019. I have a model ssd mobilinet that was optimized...

View Article


How can I resolve conflicting declaration 'typedef uint32_t uint' ?

I'm using OpenCV 3.2.0 compiled for eclipse using MinGW compiler. When I try to cross-compile a c++ OpenCV code for ARM architecture using GCC ARM compiler I'm getting this error...

View Article

Unable to locate library file (running OpenCV4.1.2 using pre-built binaries...

- OS: Windows 10 Pro (64 bit) - OpenCV version: 4.1.2 - CodeLite: 13.0.4 - MingW-64: x86_64-8.1.0-posix-seh-rt_v6-rev0 1. Downloaded and extracted prebuilt binariy from [opencv releases...

View Article

TypeError: 'NoneType' object is not iterable

Hello world, I am trying to activate a github code that uses OpenCV, and I got an error of a NoneType, Please I will appreciate any help !!!! github link:...

View Article


Take 2: Building cv2_xxx.pyd for Windows x64/Python3.7

I've tried to simplify replicating this issue by using the command line version of cmake and the configuration script that can be found here. It is about as simple as possible. There are no obvious...

View Article


CvCapture_MSMF::initStream Failed to set mediaType after switching to CUDA...

Yesterday I got set up with OpenCV (precompiled libraries for windows) and everything was working great! I had a little program that would read a video feed from my Valve Index, undistort each lens,...

View Article

OpenCV Viz Module Unavailable (Cmake) - Windows 10

I can't seem to get the viz module to configure for some reason. Any suggestions? My Configuration: - Windows 10 OpenCV - master from git - OpenCV_contrib - master from git - VTK latest version...

View Article

Build OpenCV library from source for Android

Hello, I recently jumped on a OpenCV project and am trying to cross-compile OpenCV shared library .so from source for Android on Windows. I set up the environment with various tools. In CMake, I chose...

View Article

which version of OpenCV includes x86(32-bit) lib files? how should I use it?

I want to create project with OpenCV in Windows using visual studio also i want to build my project as x86(Win32) program. When I compile the program errors occur that show I don't have appropriate x86...

View Article


DNxHD failing to load on windows?

I'm Using the pre-compiled FFMPEG which opencv uses by deafult for windows. I cannot get a DNxHD file to open as a cv::VideoCpature - either in a quicktime container or an MXF. I get a couple of "WinRT...

View Article

OpenCV Lucas-Kanade object tracking: slow down in Windows

Hi, with some of my collegues I'm developing a program for the university. The probles is that in my Windows PC the program run very slower (3-4 times) than in my group mate PCs on Linux and MacOS....

View Article


Is OpenCV allowed to use in windows user space driver of camera?

I saw in most of cases OpenCV was applied in applications. What if someone wants to add more post-processing effects in windows user space driver of camera(like MFT) so that other applications using...

View Article

Error to cross compile into arm64-v8a by CV 4.3.0

I use CMake-GUI with Newest NDK 21.2.6472646 on Windows 10. If I remove BUILD_opencv_java, CMake will finish. [ 98%] Built target gen_opencv_java_source [ 98%] Linking CXX shared module...

View Article


"no element rtspsrc" gstreamer+opencv in win10

Hello, I'm trying to receive rtsp source from gstreamer, it can shows video stream correctly by enter this command line: ./gst-launch-1.0.exe -v rtspsrc location=rtsp://192.168.1.2:8554/test latency=0...

View Article

Compiling OpenCv with CUDA support in Windows 10

Attempting to compile OpenCV with CUDA support in Windows 10. CUDA is installed correctly. Keep getting the following error(s) when compiling in Visual Studio. Can anyone suggest next troubleshooting...

View Article

Warning: field of class type without a DLL interface used in a class with a...

Issue when building OpenCV 4.4.0 from source. When I build "ALL_BUILD" and "INSTALL" projects using VS2019 Windows10 I got 2000 somthing warnings (only warnings no errors at all) saying: "Warning:...

View Article

Where to find "opencv_shape440d.lib"

OS => Windows 10 64bit IDE => Visual Studio 2019 OpenCV Verison => 4.4 When i try to compile one of the example code provided in the OpenCV VIsual Studio Tutorial, it spits out a linking error...

View Article


cv:imwrite Python error with Windows: can't open file for writing: permission...

Hello, I am receiving an error message when I execute the code in Python with Windows10. ```` [ WARN:0] global...

View Article


I'm having major issues with setting up h/w accelerated video capture on...

Normally I would switch to Linux, but due to the nature of the application I have no choice but to work with Win10. Currently, the only backend that I managed to make work was DirectShow. While it does...

View Article

Cannot convert image types using the C++ API

Using `OpenCV` I cannot convert the image type of a `cv::Mat` using the ```convertTo()``` function: screen_shot.convertTo(screen_shot, CV_8UC3); template_image.convertTo(template_image, CV_8UC3);...

View Article

Windows 10 FFMPEG wrapper build instruction/project

Does anything exist which describes this? The readme.txt in 3rdparty/ffmpeg says: "* On Windows OpenCV uses pre-built ffmpeg binaries, built with proper flags (without GPL components) and wrapped with...

View Article


Loading Tensorflow model. Error: Unspecified error (More than one input is...

**System information (version)** - OpenCV => 4.3 - Operating System / Platform => Windows 10 64 Bit - Compiler => Visual Studio 2017 - GPU NVIDIA GTX 1660 TI (6 GB) - Processor Intel Core...

View Article

How to enable Windows media foundation hardware acceleration on opencv.

Hi, My OpenCV application uses cv::CAP_MSMF flag for cv::VideoCapture, and in getBuildInformation() is added below. Is the application uses the Windows Media Foundation Hardware acceleration? or do I...

View Article

Read video from usb/onboard camera using cv::cudacodec::VideoReader

Hi, How can we read video from an onboard/usb camera using opencv `cv::cudacodec::VideoReader`?

View Article

Issue setting MJPEG format when capturing using CAP_MSMF

Hi, Using CAP_MSMF video capture I can't able to set MJPEG format. capture.set(cv::CAP_PROP_FOURCC, cv::VideoWriter::fourcc('M', 'J', 'P', 'G')); but this works when I use CAP_DSHOW video capture.

View Article



How can I check if the monitor is connected in Windows / Linux?

How can I check if the monitor is connected in Windows / Linux? The following program behavior is required, when I run my application: - if monitor is connected, then results will be showed in the...

View Article
Browsing latest articles
Browse All 135 View Live