flip a image using go

image-flip.go

package main

import (
    "image"
    "log"
    "os"

    "github.com/disintegration/imaging"
)

func main() {
    fImg, err := os.Open("./test.png")
    if err != nil {
        log.Fatal(err)
    }
    defer fImg.Close()
    img, str, err := image.Decode(fImg)
    if err != nil {
        log.Fatal(str, err)
    }
    fliped := imaging.FlipV(img)
    // fliped := imaging.FlipH(img)
    imaging.Save(fliped, "./test-fliped.png")
}