opencv tag

104 questions


1 answers
442 views
0
I want to connect the dots in the image horizontally

I want to connect the black dots in the image horizontally.Contours of cv2 detected the contour and used Euclidean distance to create four coordinates so that the interval between the acquired contour...

1 years ago

0 answers
427 views
0
It's an opencvc++ question I'm trying to mark it according to the moving video, but the video doesn't play

int main() { VideoCapture capture; capture.open(pipoball.avi); CV_Assert(capture.isOpened()); double frame_rate = capture.get(CAP_PROP_FPS); int delay = 1000 / frame_rate; Mat frame; int nofrm = 0; Po...

2 years ago

2 answers
360 views
0
I want to draw a straight line in the angled rectangle using python and opencv.

How do I draw a straight line with the same length as the long side of the rectangle in an angled rectangle?The language is Python, and the library used for drawing is OpenCV.The versions are as follo...

2 years ago

1 answers
315 views
0
Want to capture and use specific frames

I read a frame from a video to surround the ROI and create a code to track it.At that time, I would like to capture the frame I like, such as the フレームth frame, not the first frame, but how should I ch...

2 years ago

1 answers
477 views
0
python, particle filter questions

I want to track white objects using particle filters, but an error occurred when I tried to run them, so I didn't know the cause, so it stopped.If anyone knows the cause, please let me know.The runnin...

2 years ago

1 answers
429 views
0
I want to detect the lower half of the image with python.

Please let me know the code to detect only the lower half of the image.

2 years ago

1 answers
373 views
0
How to use threading to save videos from multiple webcams

I'd like to save the videos I can get from the two webcams (camera1, camera2) as separate video files.At the same time, there was another process that I had to do (which plays music, defined as music)...


1 answers
492 views
0
I want to extract the first frame of multiple videos.

I would like to extract the first frame (or 1st to nth) of each video from multiple video files in a folder and save it as an image.If it is just one video file, I have achieved it below, but I am not...

2 years ago

1 answers
131 views
0
How do I use Python to generate images and strings for each product from linked menu images?

Sorry for the difficulty in understanding the titleFrom the menu image of Kura-zushi at the link below http://www.kura-corpo.co.jp/menu-cp/img/menu-index-pc-01.jpg·For each product (maguro|salmon|how ...

2 years ago

1 answers
149 views
0
Error in OpenCV 4.1.0 cv::cudacodec::createVideoReader

I want to use cv::cudacodec::createVideoReader in opencv 4.1 for high resolution video processingcuda I have placed a valid opencv, but it cannot work. std::string fname(C:/Users/****/****.avi);cv::Pt...

2 years ago
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