%0 Journal Article
%T Assessment and Evaluation of Band Ratios, Brovey and HSV Techniques for Lithologic Discrimination and Mapping Using Landsat ETM<sup>+</sup> and SPOT-5 Data
%A Ahmed Madani
%J International Journal of Geosciences
%P 5-11
%@ 2156-8367
%D 2014
%I Scientific Research Publishing
%R 10.4236/ijg.2014.51002
%X <p class=\"MsoNormal\" style=\"text-align:justify;\">
	<span lang=\"EN-US\"><span style=\"font-family:Verdana;\">This study aims to assess and to evaluate band ratios,
brovey and HSV (Hue-Saturation-Value) techniques for discrimination and mapping
the basement rock units exposed at Wadi Bulghah area, Saudi Arabia using multispectral
Landsat ETM</span><sup><span style=\"font-family:Verdana;\">+</span></sup><span style=\"font-family:Verdana;\"> and SPOT-5 panchromatic data.</span><span style=\"font-family:Verdana;\">&nbsp;FieldSpec instrument is
utilized to collect the spectral data of diorite, marble, gossan and volcanics,
the main rock units exposed at the study area. Spectral profile of diorite
exhibits</span></span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">very distinguished absorption features around 2.20</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">¦Ìm and
2.35</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">¦Ìm wavelength regions. These absorption features lead to lower</span><span lang=\"EN-US\" style=\"font-family:Verdana;\">ing</span><span lang=\"EN-US\" style=\"font-family:Verdana;\"> the
band ratio values within </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">the </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">band-7 wavelength region. Diorite intrusions
appear to have grey and dark grey image signatures on 7/3 and 7/2 band ratio
images respectively. On the false color composite ratio image (7/3:R; 7/2:G and
5/2:B)</span><span lang=\"EN-US\" style=\"font-family:Verdana;\">, </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">diorite, marble, gossan and volcanics have very dark brown, dark
blue, white and yellowish brown image signatures</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">respectively. Image
fusion between previously mentioned FCC ratio</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">image</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">and high
spatial resolution (5</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">meters) SPOT-5 panchromatic image </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">is</span><span lang=\"EN-US\" style=\"font-family:Verdana;\"> carried out </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">by </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">using brovey and HSV transformation
%K Landsat ETM&lt
%K sup&gt
%K +&lt
%K /sup&gt
%K Data
%K SPOT-5 Panchromatic Image
%K Band Ratios-Brovey and HSV Techniques
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=42196