diff --git a/app/ColorRemover.py b/app/ColorRemover.py
index 6a2b111..0625e47 100644
--- a/app/ColorRemover.py
+++ b/app/ColorRemover.py
@@ -31,8 +31,8 @@ def combine_alpha(self, image_rgb):
     def masking(self, image_rgb):  # important
         image_mask = image_rgb.copy()
         image_hsv = cv2.cvtColor(image_mask, cv2.COLOR_BGR2HSV)
-        lower_bound = np.array([105, 10, 30])  # blue's hue is 105~135
-        upper_bound = np.array([135, 255, 255])
+        lower_bound = np.array([95, 10, 30])  # blue's hue is 105~120
+        upper_bound = np.array([120, 255, 255])
         self.masks = cv2.inRange(image_hsv, lower_bound, upper_bound)
 
         if self.size > 1024 * 1536:
@@ -42,7 +42,7 @@ def masking(self, image_rgb):  # important
     def inpainting(self, image_rgb):
         if self.masks is not None and isinstance(self.masks, np.ndarray):
             inpainted_image = image_rgb.copy()
-            inpainted_image = cv2.inpaint(inpainted_image, self.masks, 5, cv2.INPAINT_TELEA)
+            inpainted_image = cv2.inpaint(inpainted_image, self.masks, 4, cv2.INPAINT_TELEA)
             # blurred_region = cv2.GaussianBlur(inpainted_image, (10, 10), 1.5)
             # inpainted_image[self.masks != 0] = blurred_region[self.masks != 0]
             return inpainted_image