liveBook · Manning

Pixel

As explained in Web Components in Action

A pixel is an individual picture element represented by color-channel values in an image or video frame.

A pixel is an individual picture element represented by color-channel values. In live video, manipulating pixels changes the appearance of each captured frame. section 15.3

A browser component can hide camera setup and frame exposure while leaving pixel manipulation available for experimentation. Frames can be copied to a canvas, refreshed repeatedly, and passed through filters. section 15.3

How Web Components in Action covers it

How deep it goes
Explains channel-level edits and frame refresh timing, then extends filtering to WebGL shaders.
Examples
Demonstrates black-and-white conversion, randomized video snow, edge detection, radial fades, and custom shader effects.
What it assumes
Assumes JavaScript and browser component familiarity while exposing camera, canvas, frame data, and pixel edits incrementally.
What you can do after
Builds live video effects by configuring a component, assigning filters, editing channel arrays, or supplying WebGL shaders.
How it connects
Connects pixels with video processing, canvas, Web Components, WebGL, filters, and shaders.

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This explainer was generated by Manning's knowledge graph from the text of Web Components in Action. The section links point to the parts of the book it draws on.