Python Coding challenge - Day 678| What is the output of the following Python Code?

 

Code Explanation:

1) Importing OpenCV

import cv2

Imports the OpenCV library.

Used for image processing (loading, creating, editing, saving images, etc.).

2) Importing NumPy

import numpy as np

Imports NumPy, which is often used alongside OpenCV.

OpenCV images are represented as NumPy arrays.

3) Creating a Blank Image

img = np.zeros((100,200,3), dtype=np.uint8)

np.zeros(...) creates an array filled with zeros.

Shape: (100, 200, 3)

100 → height (rows / pixels vertically)

200 → width (columns / pixels horizontally)

3 → color channels (BGR: Blue, Green, Red)

dtype=np.uint8: Each pixel value is an unsigned 8-bit integer (0–255).

Since all values are 0, this creates a black image of size 100×200 pixels.

4) Printing the Shape

print(img.shape)

Displays the shape of the NumPy array (image).

Final Output

(100, 200, 3)

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