Window solution for pyscript
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according what I’ve countered recently in py-script. you can’t open any window with it because it renders on to your browser.
so how we can solve this problem and modify our program to show the result without opening a window ?
for example in this background subtraction code :
import numpy as np
import cv2
cap = cv2.VideoCapture(‘walking.avi’)
# Initlaize background subtractor
foreground_background = cv2.createBackgroundSubtractorMOG2()
while True:
ret, frame = cap.read()
# Apply background subtractor to get our foreground mask
foreground_mask = foreground_background.apply(frame)
cv2.imshow(‘Output’, foreground_mask)
if cv2.waitKey(1) == 13:
break
cap.release()
cv2.destroyAllWindows()
it is just a normal code and works well, but when I’m trying to implement this to pyscript
I get an error like this :
it complains about imshow part of the opencv and also the waitKey part of the code.
it seems py-script works totally different in terms of event and keys and windows.
this is the complete snippet of my py-script project:
<!DOCTYPE html>
<html lang=”en”>
<head>
<link rel=”stylesheet” href=”https://pyscript.net/alpha/pyscript.css” />
<script defer src=”https://pyscript.net/alpha/pyscript.js”></script>
<py-config>
– autoclose_loader: true
– runtimes:
–
src: “https://cdn.jsdelivr.net/pyodide/v0.21.0a2/full/pyodide.js”
name: pyodide-0.20
lang: python
</py-config>
<title>PYScript</title>
</head>
<body>
<py-env>
– matplotlib
– numpy
– opencv-python
– paths:
– /1.mp4
</py-env>
<py-script>
import matplotlib.pyplot as plt
import numpy as np
import cv2
cap = cv2.VideoCapture(‘1.mp4’)
foreground_background = cv2.createBackgroundSubtractorMOG2()
while True:
ret, frame = cap.read()
foreground_mask = foreground_background.apply(frame)
cv2.imshow(‘Output’, foreground_mask)
if cv2.waitKey(1) == 13:
break
cap.release()
cv2.destroyAllWindows()
</py-script>
</div>
</body>
</html>
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