DIGITAL IMAGE-ANALYSIS METHOD FOR RAPID MEASUREMENT OF RICE DEGREE OFMILLING

A digital image analysis method was developed to quickly and accuratel y measure the degree of milling (DOM) of rice. The digital image analy sis method was statistically compared to a chemical analysis method fo r evaluating DOM, which consisted of measuring the surface lipids conc entration (SLC) of milled rice. The surface lipid area percentage (SLA P) obtained by the image analysis method and the SLC obtained by chemi cal analysis had a high coefficient of determination using a quadratic model (R-2 = 0.9819) and using a logarithmic model (R-2 = 0.9703). Th e quadratic model and the logarithmic model were validated using the t est data set and it received high coefficients of determination (R-2 = 0.9502 and R-2 = 0.9459, respectively).