Chroma key compositing or green screen is a process for compositing a pair of images or frames with each other wherein a green color is taken away, unveiling another image behind it. This method is also called color keying and frequently uses a specific shade of green or blue. These colors would be the furthest away from skin tone that regardless of ethnic background, are very different contrasts of pink. As outlined by Wikipedia, green is presently applied as a backdrop more than any other color because image sensors in digital video cameras usually are most sensitive to green. The magic occurs in the video editing software program as it looks for the particular shade of green as well as replaces it with the desired backdrop.

The purity of the green screen color is yet another critical issue. If the green screen lacks purity of color, the resulting matte will lose fine-edge detail such as hair. Make sure to make use of materials as well as paints that are particularly made for green screen shots. Although it really helps to use colored lights or gels, be careful that they do not glow on the talent as this is going to add serious green spill problems during compositing. As soon as the green screen lights are set correctly, its lights could be switched off as well as the lights for the talent turned on. This is to ensure that the talent’s light does not ruin the green screen as well as that the talent is lit for the intended setting they will be composited into.

A lot of green screen shots are part of a match move sequence in which the green screen layer has to be motion tracked during compositing to move it with the background. Tracking markers are put on the green screen. The color of the tracking markers is not significant as they could easily be keyed, painted, or rot scoped out, but their size and shape is significant.

When shooting green screens with video, the very first principle will be to turn off the video camera’s edge sharpening feature. All video cameras have this attribute, referred to as sharpness or detail or some other name, that is intended to help make the picture appear sharper than the digital camera actually captures. The dilemma is that this sharpening adds edge artifacts that would seriously worsen the composite. The picture can be sharpened during compositing. Combining these lower color sampling digital cameras with the normal image compression that all modern digital cameras are now using results in an image that produces very poor quality composites.

In choosing the proper Los Angeles green screen studio you have to be positive that the color is entirely uniform as well as the surface completely flat. The screen also has to have the suitable dimensions. It is recommended that you go through every single shot you want and after that estimate the screen area so you have the correct dimensions. Make allowance for a little additional in the event you want to dilate or frame the shot more than you had visualized. Examine the area on each side of the screen to make sure that there’s ample room to position your lights. Finally, get the most possible space between your characters or props and the screen itself. This would make the job of lighting a lot easier.

There are a lot of other websites offering a variety of forms of advice on how to use green screen but a lot of them are not very specific or concise. Before following these, make sure to check my own articles and reviews on Green Screen Studio Los Angeles and Green Screen Studio.