I just used part of the data reported in tables/figures of previous journal articles to create figures for my own paper. I did not redraw the original figure or use the entire table. Do I need copyright in this case?
Thanks, Ian! Your answer makes perfect sense. Sometimes, it is not quite clear on the journals' website whether the data is also protected by copyrights. According to my understanding now, as long as we are not reproducing exactly the same original figures or tables, we don't need the permission but only the fully reference..
You can change your figure or made different conclusion from that figure. if necessarily, you have to use that figure then clearly indicate your research paper reference.