problem installing opencv on windows with python
im using win 7, python 2.7, numpy 1.8, and open cv 3.0 im very new to programming, and all i managed to do is by following tutorials i got from python IDEL this message: " ImportError:...
View Articlecv2.imshow inside a seperate process?
Consider the following illustration: import cv2 from multiprocessing import Process def f(x): cv2.imshow('window',x) pass if __name__=='__main__': cv2.namedWindow('window')...
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מבקשים לבנות אתר אינטרנט מיומן?
cool training http://Androtop.ru/?option=com_k2&view=itemlist&task=user&id=753947. ביזנס רבים אשר אין באירועים כל ידע במחשבים מפחדים שבניית אתר עלולה להיעשות מורכבת ומסובכת, אך הדבר לא חייב...
View ArticleTrouble setting up OpenCV with NDK in Android Studio
Hi, I would like to use OpenCV with the NDK in my Android Project. I am using Android Studio. I can't get it to compile properly. I am getting error while including opencv2 in my cpp file..... ** I...
View Articlepython functions' documentation
for example : PCACompute(data, mean[, eigenvectors[, maxComponents]]) in this documentation,what does these square brakets mean???
View Articlewhy dose the maxComponent argument in function cv.PCACompute doesn't work???
import cv2 as cv import numpy as np img=cv.imread(r'T/s.jpg',cv.IMREAD_GRAYSCALE) img=cv.resize(img,(512,512)) tdata=img.flatten() tdata=tdata.reshape(512*512,1) tdata=tdata-tdata.mean()...
View ArticleopenCV, Python - grab video stream
Hi there, I would like to grab a video stream like youtube by using openCV and Python, without downloading the clip. I want to analyse some frames and the only solution I found so far was to download...
View Articleneed help to change this code to live web cam streaming
Hello I followed this video(https://www.youtube.com/watch?v=Y3ac5rFMNZ0) and it was perfectly worked.. but when i change code for web cam capturing it only gets static image.. then i commented lines 54...
View ArticleIs there any enthusiasm for making point releases 3.1.1?
Since the release of 3.1 back in December 2015 there have been many great bug fixes pushed to master. For example, on OS X, there was a nasty bug where 100s after opening a VideoCapture device, openCV...
View ArticleError trying to compile 3.1.0 sample "opencv tracker"
This is the tutorial sample http://docs.opencv.org/3.1.0/d2/d0a/tutorial_introduction_to_tracker.html And this is what I get . christian@christian-desktop ~/C++_Programas/02 $ g++ Tracker_01.cpp -o...
View ArticleI want to config opencv in visual studio 2010 for development windows form...
I want to develop a windows application which is related to image processing concept. I will develop in asp.net windows form application but i'm not using c/c++ visual studio application. First i want...
View Articleconvert a Mat type to be a type of frame Mat
Hi, I am working on an augmented reality app in android, In "onCameraFrame" i am trying to overlay a small Mat which is an image that was converted from bitmap, onto frame Mat that will be returned to...
View ArticleGetting full objects on a binary image (C++)
Hi there, I have a binary image like this:  When I apply findContours function to the image I get one vector> which...
View ArticleCan a paper printed chessboard affect camera calibration?
In calibrating my camera, I used a paper printed chessboard. I guess because of the nature of the paper, it is not "perfect" since there will be some crumples/wrinkles. In 15 images that I have used,...
View Articlehow to use submat for a non square image
Hi, I am working on an augmented reality app in android, I am trying to overlay an image that is a shape of a star, its not a full squar onto the camera frame, dst.copyTo(submat); but i get a black...
View ArticleAssertion error in cvtColor
Hello, I use the Face Recognition's tutorial with OpenCV in C++ avaible on the [official documentation](http://docs.opencv.org/2.4/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html)....
View ArticleRecompiling OpenCV after modifying src code - CMake GUI
I'd like to edit some functions in OpenCV for my project and I'd like to know if there is a way to make the build a lot quicker ? I know the steps of building opencv from source code is to 1) Configure...
View ArticleProblem with drawmatches()
Hi there, I making logo detection program that uses the SIFT method to detect a logo on image. The source code is [here](https://drive.google.com/open?id=0B7CADV0PAD_rcVpqR0p4amxwd0k). The folder with...
View ArticleAttributeError: module 'cv2.cv2' has no attribute...
using opencv 3.1.0 running opencv-python tutorial example
View Articlegetting unresolved external symbols Visual Studio 2015
I'm tring to build a solution that uses openCV. I'm now down to 12 errors in the link stage. What library would have the cv::String::allocate, cv::String::deallocate, and cv::Mat::Mat. What additional...
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