A. Color approach (color, chalkiness) Color is one of important measure in rice grading. Classification of color also helpful in determined the quality of rice which it obtained the maturity, grade and growth defect of rice grains. Liu Guang-rong, 2010 is using color inspection for rice classification. Two kinds of commonly used color model were RGB and HSI model. RGB color model is represented as histograms based on RGB channel of the rice image. Next the model will be converted to HIS model for further algorithm calculation of HIS value. As HIS value was obtained, the rice grade can be known whether it is a fresh rice or old rice [7]. Figures shown below are three different color channels that an image has