fix: correct pixels values range in log trans

improcess.py

@@ -47,9 +47,10 @@ def binarize(image) -> np.ndarray:
 
 
 def log_trans(image) -> np.ndarray:
+    image = image.astype(float)
     c = 255 / np.log(1 + np.max(image))
-
-    log_img = c * np.log(image + 1)
+    log_img = c * np.log(1 + image)
+    log_img = np.clip(log_img, 0, 255)
     return log_img.astype("uint8")