Tea Leaf Analysis Essay

Image Analysis for Identifying Optimal Plucking Duration of Tea Leaf
1Shajimon K John, 2Dr T K Mani
1Professor, SAINTGITS College of Engineering, Kottayam, 2Principal KMEA Engineering College, Ernakulam

Abstract:
Plant growth monitoring is an essential requirement in the vegetation study. Images have to be captured using existing cameras of various plants. Analysis can be done on the leaf images of various plants under different conditions to study how the primary colour components, Red, Green and Blue, in the image vary during the progressive stages of the growth. As a case study the behaviour of tea leaf image on both primary colour model (RGB model) and HSI (Hue, Saturation, Intensity) models to predict the growth of the tea leaf.

I. INTRODUCTION
Tea is multi-stemmed, slow-growing evergreen shrub forms the genies of camellia

Normally there will be different shoots having various level of growth stage like growing bud, bud and scale leaves, bud and fish leaves etc. Growing buds and immature shoots is the place for storing the carbohydrates produced by the mature leaves [7, 8]. Leaf standard or plucking standard mainly refers to shoots with two tender leaves and a bud, immature dormant shoots and shoots with three tender leaves with a bud. Immature shoots and coarse leaf not considered in leaf standard since these will reduce the quality of tea.
When the plucking consists of more than 75% of leaf standard flush it is known as fine plucking, 60 – 75% of leaf standard flush is known as medium plucking and less than 60% is known as coarse plucking. Plucking mainly of two types namely light and hard plucking depends upon the point of plucking. If the point of plucking is just above the first mature leaf with one mature leaf, fish leaf and scale leaves is called as light plucking while point of plucking just above the fish leaf with fish leaf and scale leaf is known as hard plucking [9, 10,