%0 Thesis
%9 Skripsi
%A WAHYU ROMDONI, NIM.  09651011
%B FAKULTAS SAINS DAN TEKNOLOGI
%D 2013
%F digilib:12240
%I UIN SUNAN KALIJAGA
%K Keywords : growth ring, grayscalling, contrast, skeleton morphology, labeling  and counting.      
%T PENGOLAHAN CITRA DIGITAL UNTUK PERKIRAAN USIA  POHON JATI (Tectona grandis Linn.f)    
%U https://digilib.uin-suka.ac.id/id/eprint/12240/
%X Teak woods is one of the necessary requirements, especially in the  furniture industry. The good quality teaks can be determined from the color and  age of the wood. One way that can be used to determine the age of Teak Trees by  calculating the number of growth rings of the tree. Counting the total of growth  rings in the wood can be do it manually by experts is to look at the tree cross  pieces. Based on the studied in the previous study, we developed the research of  digital image processing for detecting the growth rings of wood with doing  analysis the image of a tree and compiring with manual observation.  In this research, there are three main processes, that is pre-processing,  processing and analysis. To knowing the accurate method at each stage then do  some experiment. The experiments were performed using 14 images of teak trees  obtained from 3 different places.  From the experiment get result obtained appropriate steps for image  processing Teak tree is In the pre-processing stage of the processes carried out:  grayscalle, contrast. Next on stage after the pre-processing is the skeleton  morphology. And for analysis is labeling process and the counting. The accuracy  of the obtained results a minimum value: -444.44%, maximum value: 93.33%,  and the average value of accuracy: 68.56%.    
%Z Pembimbing :  Shofwatul ‘Uyun, M.Kom