Licence plate enhancement Is it possible to enhance the image below and make it more readable?



I have tried apply binarization but there is some kind of shadow.



So I have tried to convert image to gray scale and then equalization 



It is better, but still there is a problem with shadow and international vehicle registration code is not readable.
I guess image denoising and image super-resolution techniques could be used to enhance license plate images. 
Here are a few relevant links:


Image denoising based - SNIDER: Single Noisy Image Denoising and Rectification for Improving License Plate Recognition
Image super-resolution based - Multiframe Superresolution of Vehicle License Plates Based on Distribution Estimation Approach