I recently purchased Wikitude SDK for Cordova, and I have developed an app which performs image recognition on a big painting.
The problem is that the image recognition doesn't work very good, sometimes it works well, but sometimes it doesn't. I followed the guide to create a good target colllection (they have a 2 star rating). Is there any particular reason why it does not work well all the time ? and why sometimes it works good but other times doesn't ?
Does the increase of the target collection slow the algorithm ?