Hochwasser/io.go

34 lines
489 B
Go

package main
import (
"image"
_ "image/gif"
_ "image/jpeg"
"image/png"
"log"
"os"
)
func readImage(path string) (img image.Image) {
reader, err := os.Open(path)
if err != nil {
log.Fatal(err)
}
img, _, err2 := image.Decode(reader)
if err2 != nil {
log.Fatal(err2)
}
return img
}
func writeImage(path string, img image.Image) {
f, err := os.Create(path)
if err != nil {
log.Fatal(err)
}
if err := png.Encode(f, img); err != nil {
f.Close()
log.Fatal(err)
}
}