Anonymise images using rectangles obtained by facial detection provided by Facebox (by machinebox.io)

anonymise.go

// anonymise produces a new image with faces redacted.
// see https://becominghuman.ai/anonymising-images-with-go-and-machine-box-fd0866adb9f5
func anonymise(src image.Image, faces []facebox.Face) image.Image {
	dstImage := image.NewRGBA(src.Bounds())
	draw.Draw(dstImage, src.Bounds(), src, image.ZP, draw.Src)
	for _, face := range faces {
		faceRect := image.Rect(
			face.Rect.Left,
			face.Rect.Top,
			face.Rect.Left+face.Rect.Width,
			face.Rect.Top+face.Rect.Height,
		)
		facePos := image.Pt(face.Rect.Left, face.Rect.Top)
		draw.Draw(
			dstImage,
			faceRect,
			&image.Uniform{color.Black},
			facePos,
			draw.Src)
	}
	return dstImage
}