Which factors must be considered when using the Chroma key technique?

When using the Chroma key technique, lighting, wardrobe, and background are critical factors to consider because they directly influence the effectiveness of the keying process. Proper lighting is essential to ensure that the green or blue screen is evenly lit without shadows or hotspots, which can complicate the keying and result in artifacts or unwanted edges around the subject. Consistent lighting helps achieve a clean separation between the subject and the chroma key color.

Wardrobe is also important, as clothing that closely matches the background color can lead to parts of the subject being keyed out inadvertently. Ensuring that wardrobe choices do not contain the same color as the chroma key will help maintain the integrity of the keying effect.

Additionally, the background itself should be a solid color without patterns that could add complexity to the keying process. Choosing the right background will facilitate a smoother blending of the subject into the new environment once the chroma key has been applied.

In contrast, while camera angle, audio levels, and editing software can affect the overall production quality, they do not directly impact the actual execution of the Chroma key technique as much as lighting, wardrobe, and background. Hence, focusing on these three factors is essential for effective use of Chroma keying in video