diff --git a/filters.go b/filters.go
index 4e6eeb3..3bf29d2 100644
--- a/filters.go
+++ b/filters.go
@@ -170,17 +170,17 @@ func Bilinear(img image.Image, factor [2]float32) Filter {
 }
 
 func splineKernel(B, C float32) func(float32) float32 {
-	factorA := 2.0-1.5*B-C
-	factorB := -3.0+2.0*B+C
-	factorC := 1.0-1.0/3.0*B
-	factorD := -B/6.0-C
-	factorE := B+5.0*C
-	factorF := -2.0*B-8.0*C
+	factorA := 2.0 - 1.5*B - C
+	factorB := -3.0 + 2.0*B + C
+	factorC := 1.0 - 1.0/3.0*B
+	factorD := -B/6.0 - C
+	factorE := B + 5.0*C
+	factorF := -2.0*B - 8.0*C
 	factorG := 4.0/3.0*B + 4.0*C
 	return func(x float32) (y float32) {
 		absX := float32(math.Abs(float64(x)))
 		if absX <= 1 {
-			y = absX*absX*(factorA*absX+factorB) +factorC 
+			y = absX*absX*(factorA*absX+factorB) + factorC
 		} else if absX <= 2 {
 			y = absX*(absX*(absX*factorD+factorE)+factorF) + factorG
 		} else {