COMPARISON OF THREE SHORELINES EXTRACTION METHODS BASED ON DIGITAL IMAGE PROCESSING OF SPOT-4

摘要

Shoreline is an imaginary line separating land and seawater. The purpose of this study was to compare the shoreline extraction based on the digital image processing of SPOT-4 using three methods. Those methods were ratio band of infrared and green band, Normalized Difference Vegetation Index (NDVI), and single band (band infrared). Those methods were applied on both cloudy free and cloudy (10% cloud) SPOT-4 images. The result from this study is the shoreline, which is extracted from SPOT-4 images. Accuracy obtained from the three methods are very good, but the clouds affect the level of accuracy for single band and NDVI method compared with band ratio method.