It is also known as the experience of classification.The researchers distinguish accodong to the
differences between the geometric characteristics of surface features clearly based on the growth of
mangroves and the surrounding environment .It was surveyed and aerial photography combined with
remote sensing image color, light, geometric feature, geographical location.Then through man-machine
interactive interpretation and establish of various surface features and satellite images corresponding to
the relevant characteristics of the digital image using the eye color, appearance and the interpretation of
distinction.It is frequently used in the classification of remote sensing mangroves.