A nice image processing book is Handbook of Image Processing Operators by Klette and Zamperoni, available here
AN OLDER book, which I USED TO USE for my CS411 course, is The Java Class Libraries: An Annotated Reference (Java Series) by Patrick Chan and Rosanna Lee.
You can save 30% off of list buying this book by clicking here. The Chan and Lee is the definitive reference on the class libraries and runs about 1695 pages. List price is $52.67...but your Amazon price is $36.87.
This offer is made In association with Amazon.com