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opencv in Python

Learn how to use the opencv library in Python with practical examples and best practices.

pip install opencv-python

Overview

Paragraph 1: Introduction to opencv and what it does

Paragraph 2: Key features and common use cases

Paragraph 3: Installation and getting started

import cv2

# Read an image
img = cv2.imread('image.jpg')

# Display the image
cv2.imshow('Image', img)
cv2.waitKey(0)
cv2.destroyAllWindows()

cv2.imread()

Reads an image from a file and returns it as a NumPy array.

cv2.imshow()

Displays an image in a window.

cv2.waitKey()

Waits for a key event for a specified amount of milliseconds.

cv2.destroyAllWindows()

Closes all OpenCV windows.

cv2.cvtColor()

Converts an image from one color space to another.

cv2.resize()

Resizes an image to the specified size.

cv2.VideoCapture()

Captures video from a file or camera.

cv2.imwrite()

Saves an image to a specified file.