-
Notifications
You must be signed in to change notification settings - Fork 0
/
Otsu.py
53 lines (40 loc) · 1.43 KB
/
Otsu.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
# -*- coding: utf-8 -*-
"""
Created on Thu Jan 17 19:29:53 2019
@author: KIIT
"""
# -*- coding: utf-8 -*-
"""
Created on Thu Jan 17 17:53:42 2019
@author: KIIT
"""
import cv2
import matplotlib.pyplot as plt
def main():
imgpath = "D:\\COURSES\\OpenCV\\Action\\standard_test_images\\cameraman.tif"
img = cv2.imread(imgpath, 0)
#img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
### reading the single image for the given path
th = 0
max_val = 255
ret, o1 = cv2.threshold(img, th, max_val, cv2.THRESH_BINARY + cv2.THRESH_OTSU)
ret, o2 = cv2.threshold(img, th, max_val, cv2.THRESH_BINARY_INV + cv2.THRESH_OTSU)
ret, o3 = cv2.threshold(img, th, max_val, cv2.THRESH_TOZERO + cv2.THRESH_OTSU)
ret, o4 = cv2.threshold(img, th, max_val, cv2.THRESH_TOZERO_INV + cv2.THRESH_OTSU)
ret, o5 = cv2.threshold(img, th, max_val, cv2.THRESH_TRUNC + cv2.THRESH_OTSU)
output =[img, o1, o2, o3, o4, o5 ]
plt.title('Original Image')
titles = ['Original', 'Binary', 'Binary Inv', 'Zero', 'Zero Inv', 'Trunc']
for i in range(6):
plt.subplot(2, 3, i+1)
plt.imshow(output[i], cmap ='gray')
plt.title(titles[i])
plt.xticks([])
plt.yticks([])
plt.show()
plt.imshow(o5, cmap ='gray')
plt.title('tank')
plt.xticks([])
plt.yticks([])
if __name__ =="__main__":
main()