Development of a Rapid and Precise Method of Digital Image Analysis to Quantify Canopy Density and Structural Complexity

Figure 1

Canopy photographs and their respective false-colour images where dark “canopy” pixels are coloured blue (light grey in printed paper) and light “sky” pixels are coloured red (dark grey in printed paper). Pixels are assigned on the basis of a threshold between greyscale values 1 and 255 (all the above have been created using threshold value 155; see Section 2). Density data (percentage) and aggregation (Morisita’s index) are given.