TRICERATOPS SKELETON JURASSIC
Individual Triceratops are estimated to have reached about 7.9 to 9.0 m (25.9–29.5 ft) in length, 2.9 to 3.0 m (9.5 to 9.8 ft) in height, and 6.1–12.0 tonnes (13,000–26,000 lb) in weight. The most distinctive feature is their large skull, among the largest of all land animals. The largest known skull (specimen MWC 7584, formerly BYU 12183) is estimated to have been 2.5 metres (8.2 ft) in length when complete, and could reach almost a third of the length of the entire animal. A specimen of T. horridus named Kelsey measured 7.3 metres (24 ft) long with a 1.98 metres (6.5 ft) skull, stood about 2.3 metres (7.5 ft) tall, and was estimated by the Black Hills institute to weight nearly 6 tonnes (5.9 long tons; 6.6 short tons).
Chroma key compositing, or chroma keying, is a special effects / post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture and videogame industries. A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen – chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.
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