Opencv_traincascade failing on precalculation for negatives
I have tried several times now to use opencv_traincascade (using vc12 and vc11 from Windows build), but I keep running into the error: BEGIN POS count : consumed 40 : 40 Train dataset for temp stage...
View ArticleSome function is not recognize, opencv3
Dear everyone, I am using opencv3 in visual studio, I have successful in configure step. But some basic functions are not recognized as the attached image. ![image...
View Articlemin max is not a member of std
Hello, I'm having problems trying to decode h264 video from IP camera, after some search I found it's because ffmpeg, so I downloaded the latest ffmpeg, and tried to link it to openCV but it still...
View Articleubuntu 16.10, OpenCV build fails - stdlib.h missing
Hello, I'm trying to build OpenCV on Ubuntu 16.10. The build process is interrupted with the error shown below. Obviously the file "/usr/include/c++/6/stdlib.h" exists in my system. I have tried this...
View ArticleI was compiling a sample but am getting these errors in visual studio 2015...
'ConsoleApplication2.exe' (Win32): Loaded 'C:\Users\cartc.DESKTOP-U10DILR\Documents\Visual Studio 2015\Projects\ConsoleApplication2\x64\Debug\ConsoleApplication2.exe'. Symbols loaded....
View ArticleStitching Images, error code 1
Hi, I have a simple code of stitching image. int main() { Mat pano; vector imgs; imgs.push_back ( imread ("2.jpg",CV_LOAD_IMAGE_COLOR)); imgs.push_back ( imread ("3.jpg",CV_LOAD_IMAGE_COLOR));...
View ArticleIssues with Visual Studio 2013 and 3.2
When in debug mode, I get the errors cannot open source file "opencv2/core.hpp" cannot open source file "opencv2/imgcodecs.hpp" cannot open source file "opencv2/highgui.hpp" With the sample code. In...
View ArticleCan't find opencv.hpp, however it is not installed in /usr/include/
Context: I am a new Ubuntu 16.04 user and I am trying to get OpenCV running on my system. I had some problems downloading and installing OpenCV with CUDA installed, so I used the solution as proposed...
View ArticleError (undefined reference to 'main') in the eclipse CDT setup tutorial
Hi! I am trying to work through the "Using OpenCV with Eclipse (plugin CDT)" tutorial on this site I keep getting an error when I build the the project as is stated in the tutorial. The output is: ****...
View ArticleTrying to compile character_recognition.cpp
Hi, i've just installed opencv 3.2 and tesseract module. Now i'm tryng to compile the character_recognition.cpp sample in the opencv_contrib folder. If I use the command "pkg-config --cflags --libs...
View ArticleI cant extract opencv3.2.0 android-sdk
I want to use open cv in android studio so I download opencv3.2.0 android-sdk but when I extract it make an error : "the archive is corrupt" . I use windows 10 , and I extract with winrar and 7zip .
View Articlewhy are mat operators seeing wrong type?
I'm at a loss here, why does my code crash with the error: OpenCV Error: Assertion failed (type == B.type() && (type == CV_32FC1 || type == CV_64FC1 || type == CV_32FC2 || type == CV_64FC2)) in...
View ArticlenamedWindow fails to display graphics if minimised immediately on creation
Since upgrading to OpenCV 3.2 from 2.4.3 (I believe it was around that), a window created using OpenCV fails to display any graphics if minimised immediately after creation, even if it is brought back...
View ArticleHow can I fix this?
Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit (Intel)] on win32 Type "copyright", "credits" or "license()" for more information.>>> import cv2>>> print...
View ArticleCreatesamples.exe: Error Code -9
Hi there, as I finished creating my info.txt file containg the absolute paths to the images and the rectangle information of my desired objects to be detected, I just ran opencv_createsamples.exe...
View Articleimage reading error
error: ..\..\..\..\opencv\modules\imgproc\src\color.cpp:3739: error: (-215) scn == 3 || scn == 4 in function cv::cvtColor Help me out.
View ArticleNoneType attribute error, no object shape & omxplayer unable to play video
Hello, I'm trying to get the following working # import the necessary packages from __future__ import print_function from imutils.video import VideoStream import numpy as np import argparse import...
View ArticleInstallation Error
hi, i'm trying to install the OpenCV on windows 7 but I'm reaching an error which says mutex and thread is not a member of std. I've downloaded both opencv and it's contribs and unzipped them in the...
View Articlei cannot use python opencv
when i type import cv2,error occurs like this : ** ImportError: /usr/local/lib/python2.7/dist-packages/cv2.so: undefined symbol:_Z13pyopencv_fromIN2cv4MatxIdLi4ELi4EEEEP7_objectRKT_...
View ArticleHow to solve this error ?error:...
import numpy as np import cv2 import thread, winsound face_cascade =...
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