diff

README

image-diff

Allow you to calculate the difference between two images. Primarily for documents for now.

You give it first image, like that:

And second one:

And you get diff percent (6.25%) and visual diff:

How to get and use

go get -u github.com/olegfedoseev/image-diff

And in you code:

import "github.com/olegfedoseev/image-diff"

diff, percent, err := diff.CompareFiles("test-only-text.png", "test-text-number.png")
if percent > 0.0 {
    fmt.Printf("images is different!")
}

Documentation

Index

• func CompareFiles(src, dst string) (diff image.Image, percent float64, err error)
• func CompareImages(src, dst image.Image) (diff image.Image, percent float64, err error)

Functions

func CompareFiles

func CompareFiles(src, dst string) (diff image.Image, percent float64, err error)

CompareFiles will load images from files and then compare it with CompareImages

func CompareImages

func CompareImages(src, dst image.Image) (diff image.Image, percent float64, err error)

CompareImages will check images size and pixel by pixel difference