Shooting against a green screen has several benefits and provides a lot of good creative options for use in post-production. It is a procedure wherein two images can be mixed and under the process, the image in front is removed in order to reveal the image that is behind it. Since image sensors in digital cameras are sensitive to the color green, this is why the color is used more often in the background if compared with any other hue. Hence, this channel contains minutest noise and creates clean and clear mask. This technique is used from weather forecasting to making of blockbuster feature films