So I decided to use QR Codes (or actually slightly distorted ones generated by this site: www.qrcode-monkey.com) and make 6 of them for the sides of a cuboid. I get 5 stars for each one, however the app doesn't easily detect printed images on the box. Once it's detected, then it remains persistent with tracking the images and rendering the content, but that initial detection seems to struggle.
the box is 15cmx15cm and the qr codes are printed on white matte paper. I've attached 2 of the QR images that i use.
Even though it gets 5 stars, are QR codes not recommended because they don't have much varying contrast (it's either black or white)? Because i also have a 10x10cm with images of photos that are 5 stars (similar to the template stones image that vuforia provides), and this gets detected easily.
Another question i have is, for the 512x512px "*_scaled.jpg" images that you get when you download the target database, what would happen if i manually insert my own images that are 1024x1024px? Would that make it easier for the phone to detect images?