seed can be specified to reproduce output

main.go

@@ -5,6 +5,7 @@ import (
 	_ "image/png"
 	"io/ioutil"
 	"log"
+	"math/rand"
 )
 
 func main() {
@@ -16,6 +17,10 @@ func main() {
 
 	}
 
+	// init RNG
+	rand.Seed(ConfigRegister.Seed)
+	log.Println("Seed :", ConfigRegister.Seed)
+
 	// pool of workers unionizing, ready to blend a new picture using the power of friendship
 	var pool blendWorkerPool