If you make the object a child of the target, it should disappear when the target is lost

thank you, but in the case of the image, unfortunately I can not replace it because it is a book already printed the target , I put half of the sheet for better recognition, but if there is anything I can do in a better way !

best regards!

Hello,

itedsenai wrote:

1 - After plot model in camera, if lost target, the model stay visible in camera.

You must make the model a child of the image target in your heirarchy.

itedsenai wrote:

2  - My image target is very dificulty do recognize, any solution for better recognition?

You target lacks features for reliable detection/tracking. Please review the following article:

https://library.vuforia.com/articles/Best_Practices/Attributes-of-an-Ideal-Image-Target

Thanks.