Computer Vision on Your Browser With SVG Filters

This talk is scheduled for Nov 21, 17:15
The recording will be published after editing. Multipass and Full ticket holders have early access.
Rate this content
Bookmark

SVG Filters is a powerful web technology that managed to elude the mainstream. It allows us to write computer vision primitives, that when combined can create amazing effects with just a few lines of SVG markup.

In this talk we'll dive into some code examples of using SVG filters, like creating a live webcam green screen filter, adding an infrared effect to the screen, and other cool effects you wouldn't believe your browser can do so easily.

This talk has been presented at JSNation US 2024, check out the latest edition of this JavaScript Conference.

FAQ

Cover with Double V is a swag store platform that allows users to open swag stores and send branded gifts globally to employees to celebrate various milestones.

Cover with Double V uses computer vision on the browser, leveraging SVG Filters to create various visual effects.

SVG Filters are used to create a variety of visual effects, such as green screen, frosted glass, infrared effects, and more, without the need for JavaScript.

SVG Filters can be applied to various elements like images, videos, and text, allowing developers to create visual effects such as frosted glass or infrared effects using simple SVG markup.

A green screen filter is created using SVG Filters by making green pixels transparent, allowing the background to be visible. This is achieved by manipulating pixel values through a color matrix and component transfer.

The displacement map in SVG Filters displaces pixels of an image based on x-axis and y-axis values defined by noise, using the red and green color channels to determine the displacement amount.

A color matrix in SVG Filters is used to transform the color of each pixel by multiplying it with a matrix, allowing for effects like color inversion or converting an image to a single color channel.

SVG Filters are considered performant because they run on the GPU, allowing them to efficiently process visual effects even on live webcam feeds.

Working with SVG Filters is unique because it requires a creative and experimental approach, allowing developers to explore and create effects without predefined methods, unlike typical structured development tasks.

Yes, SVG Filters are supported in all major browsers, making them a versatile choice for creating visual effects on the web.

Adam Klein
Adam Klein
21 Nov, 2024
Video transcription, chapters and summary will be available after the recording is published.

Check out more articles and videos

We constantly think of articles and videos that might spark Git people interest / skill us up or help building a stellar career

A Framework for Managing Technical Debt
TechLead Conference 2023TechLead Conference 2023
35 min
A Framework for Managing Technical Debt
Top Content
Today's Talk discusses the importance of managing technical debt through refactoring practices, prioritization, and planning. Successful refactoring requires establishing guidelines, maintaining an inventory, and implementing a process. Celebrating success and ensuring resilience are key to building a strong refactoring culture. Visibility, support, and transparent communication are crucial for addressing technical debt effectively. The team's responsibilities, operating style, and availability should be transparent to product managers.
Debugging JS
React Summit 2023React Summit 2023
24 min
Debugging JS
Top Content
Watch video: Debugging JS
Debugging JavaScript is a crucial skill that is often overlooked in the industry. It is important to understand the problem, reproduce the issue, and identify the root cause. Having a variety of debugging tools and techniques, such as console methods and graphical debuggers, is beneficial. Replay is a time-traveling debugger for JavaScript that allows users to record and inspect bugs. It works with Redux, plain React, and even minified code with the help of source maps.
Building a Voice-Enabled AI Assistant With Javascript
JSNation 2023JSNation 2023
21 min
Building a Voice-Enabled AI Assistant With Javascript
Top Content
This Talk discusses building a voice-activated AI assistant using web APIs and JavaScript. It covers using the Web Speech API for speech recognition and the speech synthesis API for text to speech. The speaker demonstrates how to communicate with the Open AI API and handle the response. The Talk also explores enabling speech recognition and addressing the user. The speaker concludes by mentioning the possibility of creating a product out of the project and using Tauri for native desktop-like experiences.
A Practical Guide for Migrating to Server Components
React Advanced 2023React Advanced 2023
28 min
A Practical Guide for Migrating to Server Components
Top Content
Watch video: A Practical Guide for Migrating to Server Components
React query version five is live and we'll be discussing the migration process to server components using Next.js and React Query. The process involves planning, preparing, and setting up server components, migrating pages, adding layouts, and moving components to the server. We'll also explore the benefits of server components such as reducing JavaScript shipping, enabling powerful caching, and leveraging the features of the app router. Additionally, we'll cover topics like handling authentication, rendering in server components, and the impact on server load and costs.
Power Fixing React Performance Woes
React Advanced 2023React Advanced 2023
22 min
Power Fixing React Performance Woes
Top Content
Watch video: Power Fixing React Performance Woes
This Talk discusses various strategies to improve React performance, including lazy loading iframes, analyzing and optimizing bundles, fixing barrel exports and tree shaking, removing dead code, and caching expensive computations. The speaker shares their experience in identifying and addressing performance issues in a real-world application. They also highlight the importance of regularly auditing webpack and bundle analyzers, using tools like Knip to find unused code, and contributing improvements to open source libraries.
Monolith to Micro-Frontends
React Advanced 2022React Advanced 2022
22 min
Monolith to Micro-Frontends
Top Content
Microfrontends are considered as a solution to the problems of exponential growth, code duplication, and unclear ownership in older applications. Transitioning from a monolith to microfrontends involves decoupling the system and exploring options like a modular monolith. Microfrontends enable independent deployments and runtime composition, but there is a discussion about the alternative of keeping an integrated application composed at runtime. Choosing a composition model and a router are crucial decisions in the technical plan. The Strangler pattern and the reverse Strangler pattern are used to gradually replace parts of the monolith with the new application.

Workshops on related topic

Build Modern Applications Using GraphQL and Javascript
Node Congress 2024Node Congress 2024
152 min
Build Modern Applications Using GraphQL and Javascript
Featured Workshop
Emanuel Scirlet
Miguel Henriques
2 authors
Come and learn how you can supercharge your modern and secure applications using GraphQL and Javascript. In this workshop we will build a GraphQL API and we will demonstrate the benefits of the query language for APIs and what use cases that are fit for it. Basic Javascript knowledge required.
Building a Shopify App with React & Node
React Summit Remote Edition 2021React Summit Remote Edition 2021
87 min
Building a Shopify App with React & Node
Top Content
WorkshopFree
Jennifer Gray
Hanna Chen
2 authors
Shopify merchants have a diverse set of needs, and developers have a unique opportunity to meet those needs building apps. Building an app can be tough work but Shopify has created a set of tools and resources to help you build out a seamless app experience as quickly as possible. Get hands on experience building an embedded Shopify app using the Shopify App CLI, Polaris and Shopify App Bridge.We’ll show you how to create an app that accesses information from a development store and can run in your local environment.
Build a chat room with Appwrite and React
JSNation 2022JSNation 2022
41 min
Build a chat room with Appwrite and React
WorkshopFree
Wess Cope
Wess Cope
API's/Backends are difficult and we need websockets. You will be using VS Code as your editor, Parcel.js, Chakra-ui, React, React Icons, and Appwrite. By the end of this workshop, you will have the knowledge to build a real-time app using Appwrite and zero API development. Follow along and you'll have an awesome chat app to show off!
Hard GraphQL Problems at Shopify
GraphQL Galaxy 2021GraphQL Galaxy 2021
164 min
Hard GraphQL Problems at Shopify
WorkshopFree
Rebecca Friedman
Jonathan Baker
Alex Ackerman
Théo Ben Hassen
 Greg MacWilliam
5 authors
At Shopify scale, we solve some pretty hard problems. In this workshop, five different speakers will outline some of the challenges we’ve faced, and how we’ve overcome them.

Table of contents:
1 - The infamous "N+1" problem: Jonathan Baker - Let's talk about what it is, why it is a problem, and how Shopify handles it at scale across several GraphQL APIs.
2 - Contextualizing GraphQL APIs: Alex Ackerman - How and why we decided to use directives. I’ll share what directives are, which directives are available out of the box, and how to create custom directives.
3 - Faster GraphQL queries for mobile clients: Theo Ben Hassen - As your mobile app grows, so will your GraphQL queries. In this talk, I will go over diverse strategies to make your queries faster and more effective.
4 - Building tomorrow’s product today: Greg MacWilliam - How Shopify adopts future features in today’s code.
5 - Managing large APIs effectively: Rebecca Friedman - We have thousands of developers at Shopify. Let’s take a look at how we’re ensuring the quality and consistency of our GraphQL APIs with so many contributors.
0 To Auth In An Hour For Your JavaScript App
JSNation 2023JSNation 2023
57 min
0 To Auth In An Hour For Your JavaScript App
WorkshopFree
Asaf Shen
Asaf Shen
Passwordless authentication may seem complex, but it is simple to add it to any app using the right tool.
We will enhance a full-stack JS application (Node.js backend + Vanilla JS frontend) to authenticate users with One Time Passwords (email) and OAuth, including:
- User authentication – Managing user interactions, returning session / refresh JWTs- Session management and validation – Storing the session securely for subsequent client requests, validating / refreshing sessions
At the end of the workshop, we will also touch on another approach to code authentication using frontend Descope Flows (drag-and-drop workflows), while keeping only session validation in the backend. With this, we will also show how easy it is to enable biometrics and other passwordless authentication methods.