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Why do weather news people still use a green screen?
Posted on 8/28/15 at 10:10 pm
Posted on 8/28/15 at 10:10 pm
asking for a friend. TIA
3
Posted on 8/28/15 at 10:11 pm to Dodd
Posted on 8/28/15 at 10:20 pm to Dodd
What do you want them to use?
Posted on 8/28/15 at 10:28 pm to Dodd
This is a pretty good explanation I found via google apart from the large costs of having sufficiently large screen to output a high resolution image of the weather map for the weather person to see, there are small technical issues which have to be taken into consideration, like the vertical scan frequency, the color temperature at which the screen would output light (which would generate a mild backlight on the weather person), the exact resolution and framing for the screen, among other things. Finally, and the most important one, is that, plain and simply, using a greenscreen is better FOR THE AUDIENCE. If TV stations used an onscreen screen to output the weather map, the final output would be a representation of a screen with lower resolution than what you can achieve with a greenscreen. When using a greenscreen, you are outputting the weather map in lieu of all the pixels that have a green frequency. This means that, if the signal is 1080p in output resolution, you'll get 1080 horizontal lines of crisp weather map on your TV. If, instead, you used a screen, the individual pixels on the screen would not occupy a single pixel, but rather, about a thousand of them, on the audience's screen, thus reducing the quality
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