diff --git a/pkg/frame/native.go b/pkg/frame/native.go
index a4e6363..6a11aab 100644
--- a/pkg/frame/native.go
+++ b/pkg/frame/native.go
@@ -169,7 +169,8 @@ func (n *NativeFrame[I]) Equals(target INativeFrame) bool {
 	}
 	if n.Rows() != target.Rows() ||
 		n.Cols() != target.Cols() ||
-		n.BitsPerSample() != n.BitsPerSample() {
+		n.BitsPerSample() != target.BitsPerSample() ||
+		n.SamplesPerPixel() != target.SamplesPerPixel() {
 		return false
 	}
 
diff --git a/pkg/frame/native_test.go b/pkg/frame/native_test.go
index 3ce576c..1669e2a 100644
--- a/pkg/frame/native_test.go
+++ b/pkg/frame/native_test.go
@@ -204,6 +204,92 @@ func TestNativeFrame_RawDataSlice(t *testing.T) {
 	}
 }
 
+func TestNativeFrame_Equals(t *testing.T) {
+	cases := []struct {
+		name  string
+		a     frame.NativeFrame[int]
+		b     frame.NativeFrame[int]
+		equal bool
+	}{
+		{
+			name: "equal",
+			a: frame.NativeFrame[int]{
+				RawData:                 []int{1, 2, 3},
+				InternalSamplesPerPixel: 2,
+				InternalCols:            3,
+				InternalRows:            4,
+				InternalBitsPerSample:   64,
+			},
+			b: frame.NativeFrame[int]{
+				RawData:                 []int{1, 2, 3},
+				InternalSamplesPerPixel: 2,
+				InternalCols:            3,
+				InternalRows:            4,
+				InternalBitsPerSample:   64,
+			},
+			equal: true,
+		},
+		{
+			name: "mismatched data",
+			a: frame.NativeFrame[int]{
+				RawData: []int{1, 2, 3},
+			},
+			b: frame.NativeFrame[int]{
+				RawData: []int{2, 2, 3},
+			},
+			equal: false,
+		},
+		{
+			name: "mismatched BitsPerSample",
+			a: frame.NativeFrame[int]{
+				InternalBitsPerSample: 2,
+			},
+			b: frame.NativeFrame[int]{
+				InternalBitsPerSample: 4,
+			},
+			equal: false,
+		},
+		{
+			name: "mismatched SamplesPerPixel",
+			a: frame.NativeFrame[int]{
+				InternalSamplesPerPixel: 2,
+			},
+			b: frame.NativeFrame[int]{
+				InternalSamplesPerPixel: 4,
+			},
+			equal: false,
+		},
+		{
+			name: "mismatched Rows",
+			a: frame.NativeFrame[int]{
+				InternalRows: 2,
+			},
+			b: frame.NativeFrame[int]{
+				InternalRows: 4,
+			},
+			equal: false,
+		},
+		{
+			name: "mismatched Cols",
+			a: frame.NativeFrame[int]{
+				InternalCols: 2,
+			},
+			b: frame.NativeFrame[int]{
+				InternalCols: 4,
+			},
+			equal: false,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			got := tc.a.Equals(&tc.b)
+			if got != tc.equal {
+				t.Errorf("Equals(%+v, %+v) got unexpected value. got: %v, want: %v", tc.a, tc.b, got, tc.equal)
+			}
+		})
+	}
+}
+
 // within returns true if pt is in the []point
 func within(pt point, set []point) bool {
 	for _, item := range set {