How to take a good video matting

The shot video should be keyed, and the background cloth should not be white, because the keying of the video is to remove the background color from the video editing software, and the face and clothes of the characters will be white, and the highlight area will also be white. Therefore, when keying, the white part of the character will also be removed. You can use a green background cloth, but the background of this color is unreliable, because the difference from the face is small and the color temperature of the light is low. Preferably a blue background cloth. Don't wear blue clothes and accessories when shooting, so the key effect is the best.

Because it's a video, don't use the flash. The color temperatures of the lamps are consistent, and the white balance of DV is set to light 5500, which can also be set to automatic. There is not much difference between lighting arrangement and studio photography, which is generally flat. This can be fine-tuned after the light position is arranged. The camera power of 70X4 is a little low. To achieve good results, it is necessary to increase the power of the light and adjust the aperture of the camera to a small aperture, thus improving the depth of field, increasing the definition and greatly improving the shooting stability and focusing ability.