crop patch around SIFT point
How to crop patch around SIFT(or other detector) point?
I want to crop image patch around detector point but I don't know how to determine size and scale (maybe orientation also matters?)
Is it makes sense or special point is only can be described by descriptor? I need this patches to visually inspect result of detections.
I want to get something like this http://www.vlfeat.org/demo/covdet_patches.jpg