Top "Opencv3.0" questions

OpenCV (Open Source Computer Vision) is a library for real time computer vision.

How does cv2.boundingRect() function of OpenCV work?

I need the explanation on boundingRect of OpenCV. I have implemented it, it works great. Is there any reference where …

python-2.7 opencv opencv3.0 opencv-contour
How to change CUDA version

I met this error when compiling a modified caffe version. OpenCV static library was compiled with CUDA 7.5 support. Please, use …

linux opencv caffe opencv3.0
OpenCV ORB descriptor: TypeError: Incorrect type of self (must be 'Feature2D' or its derivative)

I followed this simple OpenCV Feature Matching example exactly: import cv2 img = cv2.imread('box.png',0) # queryImage orb = cv2.ORB() # …

python opencv image-processing computer-vision opencv3.0
compatibility issue with contourArea in openCV 3

I am trying to do a simple area calculation of contours I get from findContours. My openCv version is 3.1.0 My …

python opencv opencv3.0
OpenCV 3.x only contains one lib - opencv_world.lib?

I'm trying to update my OpenCV version from 2.4.9 to the newest version, 3.10. I downloaded the Windows binary from here, having …

c++ opencv cmake opencv3.0
How to detect lines accurately using HoughLines transform in openCV python?

I am a newbie in both python and opencv and I am facing a problem in detecting lines in the …

python numpy opencv3.0 hough-transform
Removing black background and make transparent from grabcut output in python open cv

I have been trying to remove the black background from the grabcut output using python opencv. import numpy as np …

python-3.x opencv opencv3.0
Opencv 3 SVM training

As you may know, many things changed in OpenCV 3 (in comparision to the openCV2 or the old first version). In …

c++ opencv machine-learning svm opencv3.0
contrib module missing in opencv 3.0?

I am using OpenCV 3.0 beta. I tried to create a face recogniser using createLBPHFaceRecognizer(); class as, **Ptr <FaceRecognizer> …

c++ opencv image-processing opencv3.0 opencv-contrib
Python opencv sorting contours

I am following this question: How can I sort contours from left to right and top to bottom? to sort …

python python-2.7 opencv lambda opencv3.0