I want to apply deep Learning for the multi spectral image classification. But i am at a very initial level of it how should i go about it to get the deep understanding of Deep Learning.
This list contains a lot of useful links that you can start from "http://deeplearning.net/reading-list/". I recommend to start with this paper "Learning Deep Architectures for AI"
Also there is an interesting course on coursera "https://www.coursera.org/course/neuralnets", this course starts from the basics of the ANN up to the DNN.