If you are interested in using one of my many images, you may do so. However, by law, you are required to credit me as the creator of the photograph. Under or near the image, you should insert something along the lines of:
CC-BY-SA-3.0/Varghese Jacob at Wikipedia
making sure to link my name to my userpage (link: http://en.wikipedia.org/wiki/User:Varghesejacob) and "CC-BY-SA-3.0" to the Creative Commons website (link: http://creativecommons.org/licenses/by-sa/3.0/).
For the record, most/all of my images are licensed under Creative Commons (CC), Attribution (BY), Share Alike (SA) CC-BY-SA-3.0. This means you have every right to change any image of mine, but you must attribute me as the original creator and license any derivative works under exactly the same license (CC-BY-SA-3.0). Out of respect for me, I would request that you inform me when you are using one of my works. If it will be used online, a link would also be appreciated (I enjoy seeing where my work goes). To leave me a message, please click here. Thank you for your cooperation in advance!