Hello, this doesn't make much sense to me, maybe you could explain it better than me.
I'm working on an image target, the image is black and white and I'm working inside Adobe Illustrator. Since my preferred image print size is in A4 paper, it made sense to me to export in 3508x2480 resolution (300dpi). When I uploaded it in Vuforia target manager I got 4 stars rating. I tried adding more elements in the image to increase rating (although from what I was seeing there already were quite a lot of features in the image) but 4 stars was the best I got.
After some experimenting, I exported once (by mistake to be honest) in 72dpi, only 596x842. And the exact same image got a 5 star rating. Is there any logical explanation to this?
I should say that I used 100 as Width in the target manager.