Karakteristik Gaharu Grynops Vertegii (Gilg.) Domke Berdasarkan Analisis Sebaran Gray scale Level

Abstract

Agarwood Grynops Vertegii (Gilg.) Domke is a type of agarwood that is widely cultivated in the NTB area. The economic value of Agarwood is directly proportional to its quality. Color is one of the physical parameters to determine the quality of agarwood. The purpose of this study is to classify Grynops Vertegii (Gilg.) Agarwood based on the distribution of gray scale level using image processing. The method used is image processing based on gray scale level, Agarwood is divided into four classes based on the dominant color, in this study all samples divided into four classes: A, B, C, and D. Image in RGB converted in to gray scale images then processed in histogram to determine the distribution of the degree of gray scale and its intensity. From the results of image processing it can be seen that there is a shift in the peak position, the difference in the gray scale value, and the curve width. Gray scale values in each class A, B, C, and D respectively are 26,35, 62 and 121 with intensity value at peak positions respectively are 43300, 42400, 30350, 31750. Small gray scale values indicated that agarwood has a high black density and vice versa, while the peak position shows the dominant gray scale value in each class.