├── image.jpg
├── .gitattributes
├── invisible_v.MOV
├── background.py
├── README.md
└── invisible.py


/image.jpg:
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https://raw.githubusercontent.com/zakiazft/invisible_cloak/HEAD/image.jpg


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/.gitattributes:
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1 | # Auto detect text files and perform LF normalization
2 | * text=auto
3 | 


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/invisible_v.MOV:
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https://raw.githubusercontent.com/zakiazft/invisible_cloak/HEAD/invisible_v.MOV


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/background.py:
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 1 | import cv2
 2 | cap = cv2.VideoCapture(0)
 3 | while cap.isOpened():
 4 |     ret, back = cap.read()
 5 |     if ret:
 6 |         cv2.imshow("image", back)
 7 |         if cv2.waitKey(5) == ord('q'):
 8 |             cv2.imwrite('image.jpg', back)
 9 |             break
10 | 
11 | cap.release()
12 | cv2.destroyAllWindows()
13 | 


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/README.md:
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 1 | # invisibility_cloak
 2 |  This is how you you can have your own Harry Potter Invisibility cloak.
 3 |  
 4 |  here, you have to select hsv code of a perticular color (in my case red) which will make that colored object invisible.
 5 |  I have also used morphological transformation to reduce the noise.
 6 |  # prerequisites
 7 |  * python 3.7
 8 |  * install opecCV library
 9 |   > conda install opencv-contrib-python
10 | 
11 | and you are good to go.
12 | 


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/invisible.py:
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 1 | import cv2
 2 | import numpy as np
 3 | 
 4 | cap = cv2.VideoCapture(0)
 5 | back = cv2.imread('./image.jpg')
 6 | 
 7 | while cap.isOpened():
 8 |     ret, frame = cap.read()
 9 | 
10 |     if ret:
11 |         hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
12 |         l_red = np.array([0, 100, 100])
13 |         u_red = np.array([10, 255, 255])
14 | 
15 |         mask = cv2.inRange(hsv, l_red, u_red)
16 |         kernel = np.ones((5, 5), np.uint8)
17 | 
18 |         mask = cv2.morphologyEx(mask, cv2.MORPH_OPEN, kernel)
19 |         mask = cv2.morphologyEx(mask, cv2.MORPH_DILATE, kernel)
20 | 
21 |         mask2 = cv2.bitwise_not(mask)
22 | 
23 |         part1 = cv2.bitwise_and(back, back, mask=mask)
24 |         part2 = cv2.bitwise_and(frame, frame, mask=mask2)
25 | 
26 |         cv2.imshow("cloak", part1+part2)
27 | 
28 |         if cv2.waitKey(5) == ord('q'):
29 |              break
30 | 
31 | cap.release()
32 | cv2.destroyAllWindows()
33 | 


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