WUT_Computer_Science/Programming/EARIN/lab3/example.py
2026-02-06 22:15:23 +01:00

54 lines
1.3 KiB
Python

import tempfile
import os
import cv2
import numpy as np
import matplotlib.pyplot as plt
def main():
# define number of data points
N = 10
# define the visualization params
colors = np.random.rand(N)
with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as f:
# iterate over the optimization steps
for i in range(10):
# generate random 2D data - replace it with the results from your algorithm
x = np.random.rand(N)
y = np.random.rand(N)
# plot the data
plt.cla()
plt.figure()
plt.scatter(x, y, c=colors, alpha=0.5)
plt.xlim([0, 1])
plt.ylim([0, 1])
plt.savefig(f.name)
# read image
image = cv2.imread(f.name)
# show the image, provide window name first
cv2.imshow('visualization', image)
# add wait key. window waits until user presses a key and quits if the key is 'q'
if cv2.waitKey(0) == 113:
# and finally destroy/close all open windows
cv2.destroyAllWindows()
exit()
try:
f.close()
os.unlink(f.name)
except:
pass
cv2.destroyAllWindows()
if __name__ == '__main__':
main()