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realtime

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php中文网 Courses
php中文网 Courses
Feb 12, 2025 · Backend Development

Real-Time Photo Effects with PHP: Capturing Webcam Video and Applying Filters

This tutorial explains how to use PHP with OpenCV and the GD library to capture webcam video, save each frame as a JPEG, and apply various real‑time image filters such as grayscale, Gaussian blur, contrast adjustments, and edge detection, including keyboard‑controlled filter switching.

FiltersGDPHP
0 likes · 5 min read
Real-Time Photo Effects with PHP: Capturing Webcam Video and Applying Filters
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Dec 29, 2024 · Frontend Development

Encapsulating WebSocket with Reconnection, Heartbeat, and Event Handling in JavaScript/TypeScript

This article explains how to wrap WebSocket in a reusable JavaScript/TypeScript class that provides automatic reconnection, heartbeat monitoring, event callbacks, connection state management, and graceful destruction, while also comparing WebSocket advantages over traditional HTTP polling for real‑time H5 applications.

JavaScriptWebSocketfrontend
0 likes · 14 min read
Encapsulating WebSocket with Reconnection, Heartbeat, and Event Handling in JavaScript/TypeScript
Python Programming Learning Circle
Python Programming Learning Circle
Mar 13, 2021 · Backend Development

Building a Real‑Time Flight Tracking Application with Python and OpenSky Network Data

This tutorial explains how to retrieve live aircraft positions from the OpenSky Network via its REST API, process the data with Python libraries such as requests, pandas and NumPy, convert coordinates, and visualise the results on an interactive Bokeh map that updates every few seconds in a web browser.

BokehData Visualizationflight-tracking
0 likes · 14 min read
Building a Real‑Time Flight Tracking Application with Python and OpenSky Network Data