Imageprocessing.com

http://www.imageprocessingplace.com/root_files_V3/image_databases.htm

https://www.youtube.com/watch?v=loukiyJqpoo&list=PLiHa1s-EL3vjr0Z02ihr6Lcu4Q0rnRvjm&index=4

http://www.imageprocessingplace.com/root_files_V3/review_materials.htm linear algebra review(brief)

links
Opencv

Math