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 another important issue. If the green screen lacks purity of color, the completed matte will forfeit fine-edge details like hair. Be sure to make use of materials as well as paints which are specifically designed for green screen shots. Although it helps to make use of colored lights or gels, be careful that they do not shine on the talent as this is going to add serious green spill issues during compositing. As soon as the green screen lights are set properly, its lights can be switched off as well as the lights for the talent switched on. This is to make sure that the talent's light does not ruin the green screen as well as that the talent will be lit for the planned setting they are going to 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 initial rule will be to turn off the video camera's edge sharpening attribute. All camcorders have this function, called sharpness or detail or some other name, which is intended to make the picture look sharper than the camera really captures. The dilemma is that this sharpening really adds edge artifacts that would seriously degrade the composite. The picture could be sharpened during compositing. Combining these lower color sampling digital cameras with the normal picture compression which all current cameras are now using creates an image that produces very poor quality composites.
In selecting the suitable Los Angeles green screen studio you need to be positive that the color is totally uniform as well as the surface completely flat. The screen likewise has to have the appropriate dimensions. It is recommended that you go through each and every shot you want and then estimate the screen area so that you have the correct measurements. Make allowance for a little additional in the event you want to dilate or frame the shot more than you had visualized. Study the area on each side of the screen to ensure that there's sufficient room to position your lights. Ultimately, get the maximum possible space between your characters or props as well as the screen itself. This will make the task of lighting much easier.
The purity of the green screen color is another important issue. If the green screen lacks purity of color, the completed matte will forfeit fine-edge details like hair. Be sure to make use of materials as well as paints which are specifically designed for green screen shots. Although it helps to make use of colored lights or gels, be careful that they do not shine on the talent as this is going to add serious green spill issues during compositing. As soon as the green screen lights are set properly, its lights can be switched off as well as the lights for the talent switched on. This is to make sure that the talent's light does not ruin the green screen as well as that the talent will be lit for the planned setting they are going to 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 initial rule will be to turn off the video camera's edge sharpening attribute. All camcorders have this function, called sharpness or detail or some other name, which is intended to make the picture look sharper than the camera really captures. The dilemma is that this sharpening really adds edge artifacts that would seriously degrade the composite. The picture could be sharpened during compositing. Combining these lower color sampling digital cameras with the normal picture compression which all current cameras are now using creates an image that produces very poor quality composites.
In selecting the suitable Los Angeles green screen studio you need to be positive that the color is totally uniform as well as the surface completely flat. The screen likewise has to have the appropriate dimensions. It is recommended that you go through each and every shot you want and then estimate the screen area so that you have the correct measurements. Make allowance for a little additional in the event you want to dilate or frame the shot more than you had visualized. Study the area on each side of the screen to ensure that there's sufficient room to position your lights. Ultimately, get the maximum possible space between your characters or props as well as the screen itself. This will make the task of lighting much easier.
About the Author:
There are a lot of other websites giving various forms of advice on how to use green screen but a lot of them are not very detailed or concise. Before following these, make sure to check my own articles and reviews on Green Screen Studio Los Angeles and Green Screen Studio.
No comments:
Post a Comment