disintegration/imaging resize test

imaging_resize.go

package main

import (
        "flag"
        "github.com/disintegration/imaging"
        "image/png"
        "os"
)

func main() {
        flag.Parse()
        inputname := flag.Arg(0)
        outputname := flag.Arg(1)
        ifd, _:= os.Open(inputname)
        ofd, _ := os.Create(outputname)
        image, _ := png.Decode(ifd)
        width, height := 500, 375
        // filter := imaging.Lanczos
        // filter := imaging.Linear
        // filter := imaging.MitchellNetravali
        filter := imaging.CatmullRom
        image = imaging.Resize(image, width, height, filter)
        png.Encode(ofd, image)
}

go run imaging_resize.go input.png output.png