Do you think its disrespectful to take pictures of the deceased at a funeral? If so why?

Some people wanna remember their loved ones any which way they can.I remember watching a video that was taken of an aunt of mines funeral.It didnt bother me much, only the fact that she was dead, but i was comfortable knowing that if i wanted to see my aunt i could anytime i wanted to remenisce. I know some people ive heard say how can some one do such thing…..but I dont think its wrong, as long as your are not taking a picture of someone on their DEATH-BED thats in PAIN. please help me. i will be attending a funeral in a few days and i dont want people to think that im sick if i want to take a picture or two. please share your views.