glur

Fast Gaussian Blur in pure JavaScript, via IIR filer. Speed does not depend on blur radius.

demo 1, demo 2.

Install

npm install glur --save

API

require('glur')(src, width, height, radius)

• src - typed array with image RGBA data (will be updated with blured image).
• width - image width.
• height - image height.
• radius - blur radius.

require('glur/mono16')(src, width, height, radius) - the same as above, but input data is grayscale Uint16Array. Can be useful to calculate unsharp mask via brightness/ligthness channel.

Authors

• Andrey Tupitsin @anrd83
• Alexander Rodin @a-rodin
• Vitaly Puzrin @puzrin

References

• IIR Gaussian Blur Filter Implementation using Intel® Advanced Vector Extensions - very good article with technical details for programmers.

Licence

MIT

1.1.2 / 2016-05-05

• Fixed typo in RGBA blur math equations (regression from 1.1.0), thanks to @tonykwok.

1.1.1 / 2015-11-10

• Fixed line buffer size for mono blur when vertical images used.

1.1.0 / 2015-11-05

• Changed interpolation fn to one from Intel's whitepaper.

1.0.1 / 2015-11-04

• Maintenance: general cleanup, demo improvements.

1.0.0 / 2015-11-02

• First release.