Necessary Mathematical books for Image Processing, Pattern Recognition and Artificial Neural Networks [on hold]

I intend to pursue my higher studies in the field of Image Processing, Pattern Recognition and Artificial Neural Networks. Please guide me on mathematical books and their respective authors (that would support specifically these 3 fields). I already have the books on Image Processing by Gonzalez, Signals and Systems + Digital Signal Processing by Oppenheim. I would like to know the following:

1. Linear Algebra?


2. Statistics?


3. Probability, Random Variables, Random Processes etc?


4. Any other relevant subjects?