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Questions - webcam

Python cv2 VideoCapture() in daemon thread turns black randomly

I have a webcam that captures something I want to be able to monitor live. Every 30 seconds an operation needs to be done on the most recent frame of the video. To do this, I've set up a cv2.NamedWind...
test-img

tlars25

python

multithreading

image

opencv

webcam

Votes: 0

Answers: 0

Unexpected results when passing webcam frames to object detection

Background I have a well-trained ssd320x320 tensorflow model from tensorflow-zoo. The reports are pretty good as the train log indicates a low loss and the eval log indicates that 7 out of 9 test imag...
test-img

Ori David

python

tensorflow

opencv

object-detection

webcam

Votes: 0

Answers: 1

Latest Answer

TensorFlow model is most likely to be trained on RGB images, while cv2 works with BGR. Try image_np = cv2.cvtColor(image_np, cv2.COLOR_BGR2RGB) Also, model may be trained on normalized images, so, i...
test-img

bottledmind

Explicit webcam binding with JavaScript

Whenever I start Firefox (95.0.2) my JavaScript in Chrome loses connection to the webcam. When I end Firefox and reload/refresh my program in Chrome, the webcam stream is visible again. The JavaScript...
test-img

Paul

javascript

webcam

Votes: 0

Answers: 0

YoloV5 Webcam-Stream on Colab

I am using Yolov5 and Google Colab for custom object detection. Is it possible to access my local webcam in google colab to detect objects in real-time using custom weights in yolov5? I can open my we...
test-img

st0412

google-colaboratory

real-time

webcam

yolov5

Votes: 0

Answers: 0

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