random circles example

cmd/jpg2png/jpg2png.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"image/jpeg"
+	"image/png"
+	"os"
+)
+
+func main() {
+	img, err := jpeg.Decode(os.Stdin)
+	if err != nil {
+		panic(err)
+	}
+	err = png.Encode(os.Stdout, img)
+	if err != nil {
+		panic(err)
+	}
+}