### Image Normalization
Normalizes an image by scaling its pixel values.
**Example:** Normalize a 2x2 image: [[10,20],[30,40]] becomes [[0,0.25],[0.5,0.75]].
**Constraints:** Image size: 2x2 to 10x10, pixel values: 0-255.
Test Cases
Test Case 1
Input:
[[10,20],[30,40]]Expected:
[[0.0,0.25],[0.5,0.75]]Test Case 2
Input:
[[50,100],[150,200]]Expected:
[[0.0,0.25],[0.5,0.75]]+ 3 hidden test cases