Fig. 10
From: Adaptiveness of RGB-image derived algorithms in the measurement of fractional vegetation coverage
The linear relation between the fractional vegetation cover measured and the reference under the solar noon scenario. Shaded areas represent the 95% confidence intervals for the regression lines. Fun01 is based on the combination of \(R/G\), \(B/G\) and \(2G-R-B\). Fun02 is the decision tree algorithm based on the RGB color. Fun03 uses the excess green index and the excess red index to identify the plants in the image. Fun04 uses the excess green index and the Otsu algorithm to identify the plants in the image