Plaza San Martin, Lima, in NRG : 無料・フリー素材/写真
Plaza San Martin, Lima, in NRG / jeferonix
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
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| 説明 | NRG swaps infrared light for the Red channel, and puts red light in the Green channel and green light in the Blue channel. Blue light is discarded. It's a way to look at infrared light in a slightly more familiar way while still using the 3 colors we can see. But since plants reflect brightly in infrared, the degree of redness is related to the presence (and health) of vegetation. If there's a lot of red or green light vs. the infrared, the plants probably aren't photosynthesizing as much. Here, it's a bright day and the 'greenery' was pretty vibrant. |
| 撮影日 | 2010-12-24 10:51:29 |
| 撮影者 | jeferonix , Lima, Peru |
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