diff --git a/vsdehalo/alpha.py b/vsdehalo/alpha.py
index f562822..f86b190 100644
--- a/vsdehalo/alpha.py
+++ b/vsdehalo/alpha.py
@@ -202,7 +202,7 @@ def __call__(
             raise CustomValueError('valid values for show_mask are 1–7!', func)
 
         thmif, thmaf, thlimif, thlimaf = [
-            scale_value(x, 8, clip, ColorRange.FULL)
+            scale_value(x, 8, clip, ColorRange.FULL, ColorRange.FULL)
             for x in [thmi, thma, thlimi, thlima]
         ]
 
@@ -703,7 +703,10 @@ def dehalomicron(
     dehalo_mask = RemoveGrainMode.MINMAX_MEDIAN_OPP(dehalo_mask)
 
     if brz:
-        dmask_expr = f"x {scale_value(abs(brz), 32, y, ColorRange.FULL)} {'>' if brz < 0.0 else '>'} 0 x 2 * ?"
+        dmask_expr = (
+            f"x {scale_value(abs(brz), 32, y, ColorRange.FULL, ColorRange.FULL)} "
+            f"{'>' if brz < 0.0 else '>'} 0 x 2 * ?"
+        )
     else:
         dmask_expr = 'x 2 *'
 
diff --git a/vsdehalo/mask.py b/vsdehalo/mask.py
index 67149e9..a1503cd 100644
--- a/vsdehalo/mask.py
+++ b/vsdehalo/mask.py
@@ -43,7 +43,7 @@ def base_dehalo_mask(
 
     exp_edges = norm_expr(
         [luma, Morpho.maximum(luma, iterations=2)], 'y x - {shift} - range_half *',
-        shift=scale_value(shift, 8, luma, ColorRange.FULL)
+        shift=scale_value(shift, 8, luma, ColorRange.FULL, ColorRange.FULL)
     )
 
     edgemask = PrewittTCanny.edgemask(exp_edges, sigma=sqrt(expand * 2), mode=-1, multi=16)
diff --git a/vsdehalo/warp.py b/vsdehalo/warp.py
index 1221fff..a484e2c 100644
--- a/vsdehalo/warp.py
+++ b/vsdehalo/warp.py
@@ -63,8 +63,8 @@ def edge_cleaner(
     y_mask = get_y(work_clip)
 
     mask = edgemask.edgemask(y_mask).std.Expr(
-        f'x {scale_value(4, 8, work_clip, ColorRange.FULL)} < 0 x '
-        f'{scale_value(32, 8, work_clip, ColorRange.FULL)} > {peak} x ? ?'
+        f'x {scale_value(4, 8, work_clip, ColorRange.FULL, ColorRange.FULL)} < 0 x '
+        f'{scale_value(32, 8, work_clip, ColorRange.FULL, ColorRange.FULL)} > {peak} x ? ?'
     ).std.InvertMask()
     mask = mask.std.Convolution(mean_matrix)
 
@@ -80,13 +80,13 @@ def edge_cleaner(
 
         mask = edgemask.edgemask(
             diff.std.Levels(
-                scale_value(40, 8, work_clip, ColorRange.FULL),
-                scale_value(168, 8, work_clip, ColorRange.FULL),
+                scale_value(40, 8, work_clip, ColorRange.FULL, ColorRange.FULL),
+                scale_value(168, 8, work_clip, ColorRange.FULL, ColorRange.FULL),
                 0.35
             )
         )
-        sc4 = scale_value(4, 8, work_clip, ColorRange.FULL)
-        sc16 = scale_value(16, 8, work_clip, ColorRange.FULL)
+        sc4 = scale_value(4, 8, work_clip, ColorRange.FULL, ColorRange.FULL)
+        sc16 = scale_value(16, 8, work_clip, ColorRange.FULL, ColorRange.FULL)
         mask = removegrain(mask, 7).std.Expr(f'x {sc4} < 0 x {sc16} > {peak} x ? ?')
 
         final = final.std.MaskedMerge(work_clip, mask)