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Adding alpha channels or chroma keys to JPEG images

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By: Dave Raggett

The GIF image format supports transparency, whilst PNG supports translucency, but neither are particularly good for photos, which compress much better with JPEG. A work around is to use the HTML5 canvas 2D context. The chroma-key.js library automatically applies alpha...

  • alpha-channel
  • canvas
  • chroma-key
  • html
  • html5
  • jpeg
  • transparency

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