LEAF CLASSIFICATION USING IMAGE PROCESSING: A REVIEW.

Earth consists of unicellular and multicellular organisms. Unicellular organisms like bacterium and multi cellular organisms like flora and fauna. Since plant species cannot survive on their own from artificial disasters, it is the responsibility of human beings to protect plant species from such calamities. In order to meet that goal, it is necessary to classify the different plant species and prevent them from extinction. Even though there are huge numbers of databases existing for plant species, there are some species which are still unknown to humans. So it is essential to distinguish the different plant species and classify them into proper categories and protect them. Earlier, manual databases were there for getting this job done. But as technology progressed, automation has its effect in almost all the fields. Classification of plant species through automation is possible through methods like leaf recognition technique. Leaf recognition has its own advantages; apart from the classification plant species, it also helps in recognizing various diseases which can result in their extinction. Much research works happened in the field of leaf recognition. Most of the researchers used extraction techniques involving spatial or frequency domain. Only few researchers used features extracted using both frequency and spatial domain. In this paper we are trying to come up with a reason for less researches being conducted in the field of leaf database in India.