golang如何获得图片的缩略图？
package main
import (
"os"
"image"
"image/jpeg"
"code.google.com/p/graphics-go/graphics"
)
func main() {
imagePath, _ := os.Open("jellyfish.jpg")
defer imagePath.Close()
srcImage, _, _ := image.Decode(imagePath)
// 80 X 80
dstImage := image.NewRGBA(image.Rect(0, 0, 80, 80))
graphics.Thumbnail(dstImage, srcImage)
newImage, _ := os.Create("thumbnail.jpg")
defer newImage.Close()
jpeg.Encode(newImage, dstImage, &jpeg.Options{jpeg.DefaultQuality})
}