Copyright on a research photography I was part of a research group in a research institute I called 'X'. In this research we used a very interesting, colorful technique so I take some pictures for myself that are very artistic. Now I want to present them in a Scientific Photography contest organized by the same institute 'X'. I signed a confidentiality agreement with the institution and my research advisor. The thing is I need an author's written authorization for reproduction of the images in order to participate in this contest. At first I thought I was the author since I was the one who took the photo, but seems that in the agreement I signed says that all products of this investigation are property of the institute 'X' and I don't know if this has something to do but the camera was also property of the lab. So, who should I ask for the authors written authorization? Or I don't have to ask for it at all?
Ask the head of the research group that you were part of.