Spectral vegetation index information the expression of plant status information can be acheved by the
spectrum information. It include qualitative and quantitative evaluation of the vegetation coverage,
biomass, growth and vitality and ecological parameters. It also include normalized difference vegetation
index NDVI, ratio vegetation index RVI, tasseled cap transformation and so on. It is some vegetation
index NDVI which is most widely used in remote sensing of mangrove forests. It often classify as a
mangrove forest biomass extraction of important parameters. Mahmoud A. Saleh Isodata use
non-supervised classification method to extract AbuMinqar Red Sea island of mangroves with QuikBird
high-resolution satellite images information and images on QuikBird to establish a baseline database for
future changes in the island's mangrove monitor, select CH3 Red band, CH4 calculated near-infrared
normalized difference vegetation index NDVI = (CH3-CH4) / (CH3 + CH4).