Invalid Image detection.

dedup.py

@@ -370,7 +370,7 @@ def get_image_dimensions_cv(img):
     if img is not None:
         height, width = img.shape[:2]
         return width, height
-    return None    
+    return None, None    
                     
 """
 xxhash is about 5–10x faster than SHA256, non-cryptographic.
@@ -414,6 +414,10 @@ if __name__ == "__main__":
     
     w, h = get_image_dimensions_cv(large_img1)
     w2, h2 = get_image_dimensions_cv(large_img2)
+    if w == None or w2 == None or h == None or h2 == None:
+        print("Aborting...Invalid Image!")
+        timer()
+        exit(8)
     if w != w2 and w != h2:
         print("Diffent Resolutions")
         timer()

junk.jpg

@@ -0,0 +1 @@
+njxczsfjsdfjhklfdsklfsdfklsdlfjkdsljfldsfklsdaf