improving algo

app.py

@@ -122,11 +122,11 @@ def predict(input_img, ver):
     source = drawing.split()
 
     R, G, B = 0, 1, 2
-    constant = 2  # constant by which each pixel is divided
+    constant = 2.0  # constant by which each pixel is divided
 
-    Red = source[R].point(lambda i: i < 150 & i / constant)
-    Green = source[G].point(lambda i: i < 150 & i / constant)
-    Blue = source[B].point(lambda i: i < 150 & i / constant)
+    Red = source[R].point(lambda i: i < 200 & i / constant)
+    Green = source[G].point(lambda i: i < 200 & i / constant)
+    Blue = source[B].point(lambda i: i < 200 & i / constant)
 
     im_output = Image.merge(drawing.mode, (Red, Green, Blue))
     return im_output