All Questions
Tagged with opencv python-3.x
3,068
questions
-1
votes
0
answers
24
views
Find the best convergence point of multiple particules trajectories? [closed]
In my project, I would like to find the best convergence point of trajectories of tracked points (done with cv2.calcOpticalFlowPyrLK...).
I know all the points of each trajectory.
My goal is to find ...
- 318
1
vote
3
answers
112
views
What does '[' after an argument in a call function signify in Python?
I have been going through the opencv wiki when I came across the resize function defined as:
dst = resize( src, dsize[, dst[, fx[, fy[, interpolation]]]] )
I am unable to understand what the [ after ...
- 93
0
votes
0
answers
250
views
No module named 'cmake' (Jupyter notebook cmake, dlib import)
I'm doing face detection using a real-time camera, but I keep getting stuck in dlib install.
The usage environment is Windows and jupyter notebook.
**!pip install dlib !pip install opencv-python**
I ...
- 1
0
votes
0
answers
111
views
Python OpenCV VideoCapture Color Differs from ffmpeg and Other Media Players
I’m working on video processing in Python and have noticed a slight color difference when using cv2.VideoCapture to read videos compared to other media players.
I then attempted to read the video ...
- 71
-1
votes
1
answer
227
views
Python cv2 imwrite() - RGB or BGR
It is confusing how opencv works in python. I understand that cv2.imread() assumes that the image is in BGR. However, when i convert the image from BGR to RGB using cv2.cvtColor(image, cv2....
- 1
0
votes
0
answers
72
views
DJI Tello won't follow me
I am trying to use a code for a dji tello drone for face tracking, which I got from https://github.com/Shreyas-dotcom/DJITello_FaceTracking/blob/main/Code%3A%20V2. I had modified it for my needs and ...
0
votes
0
answers
38
views
CV2 Python - image merging based on homography matrix - error in mergeing
I am working on a project where I need to merge some (more than 1000) orthophotos. First of all I would like to know what my options are, because I think I haven't found all the solutions.
Secondly, I ...
- 85
1
vote
1
answer
71
views
How to apply inversion of pixel position
Goal
I'm trying to write a program that maps a region of an image to another region in the same image. for instance, if I have a circular region in an image that I want to map every pixel on the ...
0
votes
1
answer
48
views
How to rotate a section of an image by iteration
Goal
I'm trying to rotate a masked section of an image. For instance if I have a mask that is circular with inner radius of 30 and outer radius of 50 then my aim is to rotate the masked image by some ...
0
votes
0
answers
26
views
Image merger showing that cGAN doesn't exist
Merge Image Code:
import cv2
import numpy as np
from tkinter import Tk, filedialog, Label, Button
import tensorflow as tf
from tensorflow.keras.models import load_model
# preprocessing of image
def ...
- 1
0
votes
0
answers
93
views
module 'cv2' has no attribute 'TrackerCSRT_create'
I try to run the following code, but there is an AttributeError. I have tried everything but anything works. If anyone has any idea feel free to tell me.
--
import cv2
import time
import math
p1 = ...
- 1
0
votes
0
answers
216
views
Opencv VideoCapture() for Raspberry Pi cam working with Python 3.6 but not with Python 3.7
I am writing a little Python script in which I want to use OpenCV to capture images from my Raspberry Pi camera. I am initializing video capturing with the following line.
cam=cv2.VideoCapture("...
- 9
0
votes
0
answers
29
views
code with cv2 library doesn't work what's wrong?
This code generates an error:
import cv2
import face_recognition as fr
while 5<6:
cap=cv2.VideoCapture(0)
ret, frame = cap.read()
cv2.imwrite('camera1.jpg', frame)
cap.release()
...
- 58
2
votes
0
answers
3k
views
FFMPEG RTSP Stream timeout triggered after 30015.187000 ms
I am trying to read several RTSP streams using opencv cv2.VideoCapture(URL). It has FFMPEG backend. Sometimes for few streams it is throwing timeout warning after 30 seconds.
[ WARN:[email protected]] global ...
- 21
0
votes
0
answers
33
views
How to detect lines for match the following from images
I want to detect the lines joining the points and extract the coordinates of the points that are joined by the line.
But the code is just considering the all lines as single along with the points.
...
- 1