I know how to improve the augmentable rating if I am allowed the change anything I want about an image.
But, what about for images that have already printed, or are not controlled by me. My thinking is that since vuforia is working (i think) from relative "features" instead of directly from image data at runtime, then, there should be some types of improvements I could make to my images before uploading them to the manager...that increase the effectiveness of finding features...without changing those feature. Hope that makes sense.
For example adjusting the levels in photoshop is probably one lever we have.
Any best practices known or maybe even some PS scripts people have already made?