[Solved] What will be the output of this Python snippet when no motion is detected?import cv2 cap = cv2.VideoCapture(0) ret, frame1 = cap.read() ret, frame2 = cap.read() diff = cv2.... | Raspberry Pi

Raspberry Pi - Camera Module

What will be the output of this Python snippet when no motion is detected?

import cv2
cap = cv2.VideoCapture(0)
ret, frame1 = cap.read()
ret, frame2 = cap.read()
diff = cv2.absdiff(frame1, frame2)
print(diff.sum() == 0)

AError

BFalse

CNone

DTrue

Step-by-Step Solution

Solution:

Step 1: Understand cv2.absdiff
This function calculates the absolute difference between two frames pixel-wise.
Step 2: When no motion occurs
Both frames are nearly identical, so the difference matrix will be all zeros.
Step 3: diff.sum() == 0
If the sum of all pixel differences is zero, it means no motion.
Final Answer:
True -> Option D
Quick Check:
Sum zero means no difference [OK]

Quick Trick: Sum of diff zero means no motion detected [OK]

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What will be the output of this Python snippet when no motion is detected?