diff --git a/filter.py b/filter.py
index f7fa90e..b123fd9 100644
--- a/filter.py
+++ b/filter.py
@@ -1,28 +1,36 @@
 from PIL import Image
 import numpy as np
+
+class PixelArt:
+    def __init__(self, pixel_array, pixel_size:int, graduation:int):
+        self.image = np.array(pixel_array)
+        self.size = pixel_size
+        self.graduation = graduation
+        self.height = len(self.image)
+        self.width = len(self.image[0])
+
+    def make_image_grey(self):
+        for pix_width in range(0, self.width, self.size):
+            for pix_height in range(0, self.height, self.size):
+                self.make_color_grey(color=self.make_medium_color(pix_width, pix_height), pix_width=pix_width, pix_height=pix_height)
+        return Image.fromarray(self.image)
+
+    def make_medium_color(self, pix_width, pix_height):
+        color = 0
+        for column in range(pix_width, pix_width + self.size):
+            for line in range(pix_height, pix_height + self.size):
+                color += sum([int(self.image[column][line][j]) for j in range(3)])
+        return int(color / 3 // (self.size ** 2))
+
+    def make_color_grey(self, color, pix_width, pix_height):
+        for column in range(pix_width, pix_width + self.size):
+            for line in range(pix_height, pix_height + self.size):
+                self.image[column][line][0] = int(color // self.graduation) * self.graduation
+                self.image[column][line][1] = int(color // self.graduation) * self.graduation
+                self.image[column][line][2] = int(color // self.graduation) * self.graduation
+                
 img = Image.open("img2.jpg")
-arr = np.array(img)
-a = len(arr)
-a1 = len(arr[1])
-i = 0
-while i < a - 11:
-    j = 0
-    while j < a1 - 11:
-        s = 0
-        for n in range(i, i + 10):
-            for n1 in range(j, j + 10):
-                n1 = arr[n][n1][0]
-                n2 = arr[n][n1][1]
-                n3 = arr[n][n1][2]
-                M = n1 + n2 + n3
-                s += M
-        s = int(s // 100)
-        for n in range(i, i + 10):
-            for n1 in range(j, j + 10):
-                arr[n][n1][0] = int(s // 50) * 50
-                arr[n][n1][1] = int(s // 50) * 50
-                arr[n][n1][2] = int(s // 50) * 50
-        j = j + 10
-    i = i + 10
-res = Image.fromarray(arr)
+graduation = 50
+pixel_size = 10
+res = PixelArt(pixel_array=img, pixel_size=pixel_size, graduation=graduation).make_image_grey()
 res.save('res.jpg')