dhash

dHash algorithm in Go

Install

go get github.com/guilhermehn/dhash

Or with gopkg:

go get gopkg.in/guilhermehn/dhash.v1

Usage

Two parameters are needed: the path to the image and the size that the image will be resized to, that will reflect into the hash size. The recommended size is 8.

Dhash("image.jpg", 8)

The image will be resized to 8x8 and the hash size will be size*2: "8899aabbccddeeff".

Example:

package main

import (
  "fmt"
  "github.com/guilhermehn/dhash"
  // or if you installed the gopkg version
  // "gopkg.in/guilhermehn/dhash.v1"
)

func main() {
  pathToImage := "path/to/image"
  detailLevel := 8

  hash, err := dhash.Dhash(pathToImage, detailLevel)

  if err != nil {
    fmt.Println("ERROR: %s", err.Error())
    return
  }

  fmt.Println(hash)
}

Dependencies

• github.com/disintegration/imaging

License

MIT