@bestminr/fastblur
v0.1.1
Published
Linear-time gaussian blur
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fastblur
Fast (linear time) implementation of the Gaussian Blur algorithm in Rust. Original taken from http://blog.ivank.net/fastest-gaussian-blur.html
Usage
The image is assumed to be an RGB image with three channels. This should change in the future, so you can blur as many channels as you want. Still very WIP.
Rust Crate
#[dependencies]
fastblur = { git = "https://github.com/bestminr/fastblur" }
use fastblur::fast_blur;
// data is a Vec<[u8;3]> - 3 items for R, G and B.
// This format will probably change.
fast_blur(&mut data, width, height, 10.0);
WebAssembly module
Thanks to wasm-pack, we can publish a WebAssembly module to work inside browsers.
Example usage:
export function applyFastBlur(imageData: ImageData, blurRadius: number): Bluebird<ImageData> {
return new Promise((resolve, reject) => {
import('@bestminr/fastblur')
.then((m) => {
const { width, height } = imageData
const inputDataArr = new Uint8Array(imageData.data)
m.do_fast_blur(inputDataArr, width, height, blurRadius)
const outputImageData = new ImageData(new Uint8ClampedArray(inputDataArr), width, height)
return resolve(outputImageData)
}).catch(reject)
})
}