Category "video-processing"

Is there a way to increase speed for video processing with opencv? [duplicate]

out = cv2.VideoWriter(output_file, codec, fps, (width,height)) while video.isOpened(): has_frame, image = video.read() if has_frame:

Python CV2 video writer doesn't save video

I have a simple python code using OpenCV and Keras that performs some detections on frames (follow-up from my previous question here). But when I want to record

Python CV2 video writer doesn't save video

I have a simple python code using OpenCV and Keras that performs some detections on frames (follow-up from my previous question here). But when I want to record

Ffmpeg won't cut excerpt of video correctly

I am using a DOS batch to automate and cut excerpts of various high definition videos (mkv's with more than 1GB each). The script is very convenient and runs fa

Video Codec with in build audio

I want to build a Network video recorder. I have a question regarding Video encoder. My question is , that video codec like H.264 has inbuild audio or we have t

tqdm progressbar for opencv videocapture going beyong 100%

I am processing a video using Opencv in python and using tqdm to show the progressbar. However, the progress goes beyond 100%. Not really sure why is this happe

Errors/Empty video after using write() from cv2.VideoWriter

I am performing template matching and everything seems to be working fine in cv2.imshow(). I want to write a video with all frames resulting from the template m

Golang loop through video frames and pixels?

Is it possible in Golang to loop through an .mp4/.mov video file frame by and modify each frame's pixels? I know this is a complicated answer and there are bet

Concatenate 2 videos into 1 using Python

I want to write a program that monitors and tracks objects in 2 different videos using openCV in python (cv2). I would like to Merge the two videos into 1 vide

Frame from video is upside down after extracting

My problem here is that when I extracting a video into a frame using opencv, sometimes the frame that I get will flip up which happened to me for both my machin

Convert YUV2 (YUYV) frames to RGB without use of OpenCV

I am trying to convert YUV2 frames generated by V4l2 to RGB. I was able to convert YUV2 to RGB cv2.cvtColor(im, cv2.COLOR_YUV2RGB_YUYV) using OpenCV. Currently

Calculate affine motion model coefficients using OpenCV in C++

In order to correctly represent the camera motion characterization, I have to find different camera operations (such as Zoom, Pan, Rot and Tilt) in a video. The