Top "Opencv" questions

Image size (Python, OpenCV)

I would like to get the Image size in python,as I do it with c++. int w = src->…

python opencv size

Choosing the correct upper and lower HSV boundaries for color detection with`cv::inRange` (OpenCV)

I have an image of a coffee can with an orange lid position of which I want to find. Here …

opencv hsv color-detection

OpenCV in Android Studio

I want to use OpenCV library in my app with Android Studio. I followed instructions found here but I get …

android opencv android-studio gradle

Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition

One of the most interesting projects I've worked on in the past couple of years was a project about image …

c++ algorithm image-processing opencv

cv2.imshow command doesn't work properly in opencv-python

I'm using opencv 2.4.2, python 2.7 The following simple code created a window of the correct name, but its content is just …

python opencv image-processing

How can I upgrade NumPy?

When I installed OpenCV using Homebrew (brew), I got this problem whenever I run this command to test python -c "…

python opencv numpy homebrew anaconda

error: (-215) !empty() in function detectMultiScale

I'm trying to learn cv2 in python 2.7, but when I run my code, in the specific part of it: face_…

python python-2.7 opencv image-recognition

OpenCV TypeError: Expected cv::UMat for argument 'src' - What is this?

Disclaimer: huge openCV noob Traceback (most recent call last): File "lanes2.py", line 22, in canny = canny(lane_image) File "lanes2.…

python opencv typeerror src

Why is Visual Studio 2010 not able to find/open PDB files?

I am trying to use OpenCV in VS 2010. I am an amateur, and I am learning first steps from the …

visual-studio visual-studio-2010 visual-c++ opencv

How to write text on a image in windows using python opencv2

I want to put some text on an Image. I am writing the code as: cv2.putText(image,"Hello World!!!", (…

python windows opencv