Summary

In this lab, we used different methods to estimate the amount of skylight allowed through the canopies of two different types of trees at various times over a four month period. Our analysis is meant to test the hypothesis that the non-native Norway Maple tends to block more light than native American Beech trees. We found that while the Maple does tend to block more light in the early months, towards the end of the period, the difference between the two is minimal. We also found that various methods of choosing a threshold for an image can have very different results. Back
Swarthmore College - E/CS 27 - Fall 2003