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Showerglass

A soothing face filter where you can appreciate the beauty but not fully identify the person. Useful for social applications, blogging etc.

You can read how it works in this article.

Features

Resizing (Caire, NearestNeighbor, ApproxBiLinear, BiLinear, CatmullRom)
Automatic Face detection
Frosted Showerglass filter (delaunay triangulation) over only face

Image credit: https://unsplash.com/photos/tCJ44OIqceU

Installation

go get -u github.com/rocketlaunchr/showerglass/core

import "github.com/rocketlaunchr/showerglass/core"

Usage

import	("image/jpeg"; "os";)
import	"github.com/rocketlaunchr/showerglass/core"

f, _ := os.Open("face.jpg")
defer f.Close()

opts := showerglass.Options{
	NewHeight: 100.0,
	NewWidth:  100.0,
	ResizeAlg: showerglass.CatmullRom,
	TriangleConfig: func(QRank, facearea int, Q float32, h, w int, c showerglass.MaxPoints) *showerglass.TriangleConfig {
		if QRank < 1 {
			// only modify first detected face
			return &showerglass.TriangleConfig{
				MaxPoints:  1500,
				BlurRadius: 4,
				BlurFactor: 1,
				EdgeFactor: 6,
				PointRate:  0.075,
			}
		}
		return nil
	},
}

masked, _, _ := showerglass.FaceMask(f, opts)

out, _ := os.Create("masked.jpg")

jpeg.Encode(out, masked, &jpeg.Options{Quality: 100})

Calibration

A higher MaxPoints means the face looks closer to the original.
A lower MaxPoints (with the exception of 0) means a more obfuscated face.

Based on the facearea, you need to calibrate MaxPoints to achieve the desired feel.

Credits

Endre Simo - One of the masters of Image Processing [worth following]

Other useful packages

awesome-svelte - Resources for killing react
dataframe-go - Statistics and data manipulation
dbq - Zero boilerplate database operations for Go
electron-alert - SweetAlert2 for Electron Applications
google-search - Scrape google search results
igo - A Go transpiler with cool new syntax such as fordefer (defer for for-loops)
mysql-go - Properly cancel slow MySQL queries
react - Build front end applications using Go
remember-go - Cache slow database queries
testing-go - Testing framework for unit testing

Legal Information

The license is a modified MIT license. Refer to LICENSE file for more details.