import cv2 # Open the video capture (0 for the default camera or a video file path) cap = cv2.VideoCapture(0) # Check if the camera is opened successfully if not cap.isOpened(): print(“Error: Could not open camera.”) exit() # Get the frame width and height to define the video codec frame_width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) frame_height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) …
import cv2 import collections import time # Parameters video_source = 0 # Use 0 for webcam, or provide a video file path output_dir = “key_event_clips” buffer_size = 50 # Number of frames to buffer before the event clip_duration = 2 # Duration of the clip after the event (in seconds) fps = 30 # Frames …
Hi everyone, In this article we will discuss about the reflection in Java with some examples. The reflection in Java is briefly explained in the article. Reflections in Java with examples Table of contents: Introduction Key uses of reflection in Java Why we used it in Java How to create a reflection in Java Advantages …
import pandas as pd # Create a sample DataFrame data = { ‘Name’: [‘Alice’, ‘Bob’, ‘Charlie’], ‘Age’: [25, 30, 35], ‘City’: [‘New York’, ‘Los Angeles’, ‘Chicago’] } df = pd.DataFrame(data) # Save DataFrame to CSV df.to_csv(‘output.csv’, index=False) # index=False excludes the index column from the CSV
import pandas as pd # Sample DataFrame data = {‘A’: [1, 2, 3], ‘B’: [4, 5, 6], ‘C’: [7, 8, 9]} df = pd.DataFrame(data) # Function to get column index by column name def get_column_index(df, column_name): try: return df.columns.get_loc(column_name) except KeyError: return f”Column ‘{column_name}’ not found” # Example usage column_name = ‘B’ index = get_column_index(df, …
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In this article, we’ll explore a basic Node.js concept that allows your application to keep running indefinitely. We’ll learn how to use a simple setInterval function to simulate a process that continues to execute until it’s manually terminated. If you’ve ever wondered how to keep your Node.js program alive until you decide to stop it, …
In this article, we will understand how to add a new element to HTML DOM in JavaScript. Adding new elements to the DOM is a fundamental part of building dynamic web applications. Developers can create real-time interactive web pages without having to reload the entire page. DOM (Document Object Model) in JavaScript means allowing programmers to access and update the content, structure, and …
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Web scraping is the Process of automatically extracting data from websites. It involves using software tools or scripts to retrieve information from web pages, parse the content, and save it for further analysis, manipulation, or storage. Using Modules for Web Scraping in Python 1. install the Required module: Use the command: pip install beautifulsoup4 …
A well-designed navbar (or toolbar) can give your Android app a sleek and modern appearance. In this tutorial, we’ll walk you through creating a navbar with a transparent effect in Android Studio. We’ll cover everything from setting up the project to applying the transparency effect using XML and Java/Kotlin. Let’s dive in! Step 1: Set …
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Text detection and extraction involve finding and reading text from images. In Python, we can use OpenCV for image processing and an OCR(Optical character recognition) tool like Tesseract for reading text. How to detect text and extract it using OpenCV and OCR in Python. Step 1: Installation Install Tesseract OCR 1. Download and install …
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