diff --git a/filter/filter_test.go b/filter/filter_test.go
index bb6eb22d..81ab3c18 100644
--- a/filter/filter_test.go
+++ b/filter/filter_test.go
@@ -39,7 +39,7 @@ import (
 //frames into a byte slice of 10
 
 func BenchmarkBasic(b *testing.B) {
-	file, _ := os.Create("test_outMOG.mjpeg")
+	file, _ := os.Create("testout/test_outBasic.mjpeg")
 	w := io.WriteCloser(file)
 	f := NewBasic(w, false, 45000, 1000)
 	fmt.Print("\nFrames: ", len(testPackets))
@@ -51,9 +51,21 @@ func BenchmarkBasic(b *testing.B) {
 }
 
 func BenchmarkDifference(b *testing.B) {
-	file, _ := os.Create("test_outMOG.mjpeg")
+	file, _ := os.Create("testout/test_outDiff.mjpeg")
 	w := io.WriteCloser(file)
-	f := NewDifference()
+	f := NewDifference(w, false, 3)
+	fmt.Print("\nFrames: ", len(testPackets))
+	for n := 0; n < b.N; n++ {
+		for _, x := range testPackets {
+			f.Write(x)
+		}
+	}
+}
+
+func BenchmarkKNN(b *testing.B) {
+	file, _ := os.Create("testout/test_outKNN.mjpeg")
+	w := io.WriteCloser(file)
+	f := NewKNN(w, 25, 20, 300, 9, false, 1, 1)
 	fmt.Print("\nFrames: ", len(testPackets))
 	for n := 0; n < b.N; n++ {
 		for _, x := range testPackets {
@@ -63,9 +75,9 @@ func BenchmarkDifference(b *testing.B) {
 }
 
 func BenchmarkMOG(b *testing.B) {
-	file, _ := os.Create("test_outMOG.mjpeg")
+	file, _ := os.Create("testout/test_outMOG.mjpeg")
 	w := io.WriteCloser(file)
-	f := NewMOGFilter(w, 25, 20, 500, false, 1)
+	f := NewMOG(w, 25, 20, 500, false, 1, 1)
 	fmt.Print("\nFrames: ", len(testPackets))
 	for n := 0; n < b.N; n++ {
 		for _, x := range testPackets {