Satellite images representing part of the Eastern Desert of
Egypt, were acquired by the Landsat 7 satellite on October 19,
2000 (P175R042) and September 10, 2000 (P174R042). Landsat7
ETM+ images with 30 m resolution available from the Global Land
Cover Facility were used for preparing a base map for the study
area. The ENVI v 4.7 software was used for digital image processing.
Pre-processing of the data is done to construct a mosaic of
two images. Digital image processing using the Landsat7