ABSTRACT
VegCover is a full-automatic GV measurement software (Fig. 1), developed based on the selfadaptive algorithm that finds the optimal threshold to segment Excess Green index (2 G-R-B, abbreviated as EXG) of a photo taken vertically downwards (towards the ground) into a binary image (vegetation and background) (Hu et al. 2011). GV is considered as the percentage of vegetation pixels in the photo. Mostly, you only need to do one thing in VegCover that is to select the images stored in your computer. Afterwards, VegCover produces a binary image and a GV value for each digital image. So Requirements of VegCover are almost set in image acquisition step before using VegCover.
