A DIY method of measuring plant health using a modified digital camera has been created by a Kickstarter Public Labs project.
The Infragram project involves removing the inbuilt infrared filter and adding a filter that blocks visible red light instead.
This shows the trees as coloured red. Areas of bright red mean large amounts of photosynthesis and healthy plants.
BBC: How cameras can measure plant health
Infragram: the Infrared Photography Project
A simple, cheap infrared camera which can measure plant health -- for geek gardeners, farmers, and open source DIY scientists.
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