method MagickImage.prototype.vignetteimport { MagickImage } from "https://deno.land/x/imagemagick_deno@0.0.14/src/magick-image.ts"; vignette(): voidvignette(radius: number,sigma: number,x: number,y: number,): voidReturnsvoidParametersradius: numbersigma: numberx: numbery: numberReturnsvoid