Abstract
A Landsat image of the multispectral scanner system covering an area lying between the Aqabah Gulf and the southern margin of the Dead Sea was analyzed by digital image processing techniques to delineate various geological and structural features of southwest Jordan area. Two major techniques in digital image processing were employed. They are preprocessing and enhancement, and their constituent treatment processes. Types of lithology, lineaments and topographic contrasts of southwest Jordan were used as test criteria. Results of comparison indicate that the combination of images processed by first principal component, second principal component and filtered first principal component as assigned to the hue, saturation and intensity system coordinates, respectively, provided better results than products of other digital techniques. Such good results enable geologists to map major lithologies, lineaments and other structural features effectively, as well as to assess topographic variations.
Highlights
This study deals with evaluation of digital processing techniques over a large area in southwest Jordan, extending westward from western parts of the areas of Wadi Al-Arabah to Al-Jafr basin and northward from the Dead Sea-Wadi Al-Hassa line to the Saudi-Arabia boundary (Figure 1)
A Landsat image of the multispectral scanner system covering an area lying between the Aqabah Gulf and the southern margin of the Dead Sea was analyzed by digital image processing techniques to delineate various geological and structural features of southwest Jordan area
Lineaments and topographic contrasts of southwest Jordan were used as test criteria
Summary
This study deals with evaluation of digital processing techniques over a large area in southwest Jordan, extending westward from western parts of the areas of Wadi Al-Arabah to Al-Jafr basin and northward from the Dead Sea-Wadi Al-Hassa line to the Saudi-Arabia boundary (Figure 1). This area is covered by a Landsat image that was launched on March 5, 1978. The image was obtained as a computer-compatible tape (CCT) and covers an area of approximately 185x185 km. Application of remote sensing techniques for the study of regional tectonics is more valuable than other applications in geology (Sabins, 1978). Wise et al (1985) demonstrate that the digital image processing techniques are useful for studying regional tectonic features
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