Feature Extraction

[IfrahIdrees]

Hi,

I am new to the concept of using AAM for feature extraction. I need to apply something similar to my project. I am having trouble in finding the optimum length of the array of features. I see that you have fixed it to 200 but I fail to understand how do fix it and how do you know that it is the optimum length?

Please can you correct me if I am wrong but you are converting every image into a wrapped image and then every pixel in that wrapped image is used as a feature. Any headsup on how do find the array of features and fix its length will be highly appreciated.