Forest land classification technical method

The invention relates to a forest land classification technical method, which is characterized by specifically comprising the following steps of: selecting forest land areas needing to be classified, and obtaining required data; remote sensing image preprocessing is carried out; performing remote sensing image enhancement processing; performing feature extraction on the image; forest land classification is completed; enhancing effect analysis; performing manual visual interpretation correction; and field investigation is carried out, and real classification is determined. According to the method, two methods of Retinex enhancement and guided filtering are combined, after the visual effect, the image color and the image edge details of the forest land vegetation tree remote sensing image are enhanced, the linear terrain, the vegetation index and the texture features of the forest land in the enhanced image are extracted, a feature set is formed and input into a rotating forest algorithm, the maximum credibilit