You are currently showing signs of miniturization in the crown and the frontal area.
while it is possible to give you specific graft counts, i would prefer to know your age first. you have lost very little hair. it is just that your hair is getting finer and lighter. the finer hair is allowing more light to penetrate to the scalp. this is going to be more noticable when your hair is wet or when you are in direct well, lighted areas. any grafts into the thinning areas at this time, could lead to shock loss. therefore, it is best to treat the area with medications first and hope that this alone solves the problem for you. if not, you can beef the area up adding a little hair gradually or a whole bunch all at once. the latter probably caries a greater risk of shock loss.