diff --git a/Sources/YUCIHighPass.m b/Sources/YUCIHighPass.m
index bbccef7..7bc30bf 100644
--- a/Sources/YUCIHighPass.m
+++ b/Sources/YUCIHighPass.m
@@ -41,6 +41,10 @@ - (NSNumber *)inputRadius {
     return _inputRadius;
 }
 
+- (void)setDefaults {
+    self.inputRadius = nil;
+}
+
 - (CIImage *)outputImage {
     CIFilter *blurFilter = [CIFilter filterWithName:@"CIGaussianBlur"];
     [blurFilter setValue:self.inputRadius forKey:kCIInputRadiusKey];
diff --git a/Sources/YUCIHighPassSkinSmoothing.m b/Sources/YUCIHighPassSkinSmoothing.m
index 8a6e751..5c728fd 100644
--- a/Sources/YUCIHighPassSkinSmoothing.m
+++ b/Sources/YUCIHighPassSkinSmoothing.m
@@ -149,6 +149,12 @@ - (void)setInputToneCurveControlPoints:(NSArray<CIVector *> *)inputToneCurveCont
     return self.skinToneCurveFilter.rgbCompositeControlPoints;
 }
 
+- (void)setDefaults {
+    self.inputAmount = nil;
+    self.inputRadius = nil;
+    self.skinToneCurveFilter = nil;
+}
+
 - (CIImage *)outputImage {
     YUCIHighPassSkinSmoothingMaskGenerator *maskGenerator = [[YUCIHighPassSkinSmoothingMaskGenerator alloc] init];
     maskGenerator.inputRadius = self.inputRadius;
diff --git a/Sources/YUCIRGBToneCurve.m b/Sources/YUCIRGBToneCurve.m
index 90173ec..098df36 100644
--- a/Sources/YUCIRGBToneCurve.m
+++ b/Sources/YUCIRGBToneCurve.m
@@ -49,8 +49,20 @@ - (NSNumber *)inputIntensity {
     return _inputIntensity;
 }
 
+- (NSArray<CIVector *> *)defaultCurveControlPoints {
+    return [NSArray arrayWithObjects:[CIVector vectorWithX:0 Y:0], [CIVector vectorWithX:0.5 Y:0.5], [CIVector vectorWithX:1 Y:1], nil];
+}
+
+- (void)setDefaults {
+    self.inputIntensity = nil;
+    self.redControlPoints = self.defaultCurveControlPoints;
+    self.greenControlPoints = self.defaultCurveControlPoints;
+    self.blueControlPoints = self.defaultCurveControlPoints;
+    self.rgbCompositeControlPoints = self.defaultCurveControlPoints;
+}
+
 - (CIImage *)outputImage {
-    NSArray *defaultCurve = [NSArray arrayWithObjects:[CIVector vectorWithX:0 Y:0], [CIVector vectorWithX:0.5 Y:0.5], [CIVector vectorWithX:1 Y:1], nil];
+    NSArray *defaultCurve = self.defaultCurveControlPoints;
     if (self.redControlPoints.count == 0) {
         self.redControlPoints = defaultCurve;
     }