dhash

README

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 the image will be resized that will reflect into the hash final 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

Documentation

Index

• func Dhash(path string, size int) (string, error)

Functions

func Dhash

func Dhash(path string, size int) (string, error)

Runs a difference hash algorithm on the image and returns a hash string and a error if there was one during the function execution.