Using the tasseled cap (TCT) and principle component analysis (PCA) transform on satellite image from area of Al diwaniya city

Abstract

In this paper treated the tasseled cap transformation (TCT) and the principle component analysis (PCA) applied to satellite image of land sat 7 enhanced thematic mapper plus (ETM+). The image taken on march 25,2001 that included the area between Al diwaniya center and southern of its . These techniques are similar,the analysis of the transformation images obtained shows that the results of pca and tct was proved to be a reliable and convenient methods of landsat ETM+ data .the information on vegetation and soil easier to display and understand but pca is best than tct in the resolution of information . The tasseled cap transformation gives an information on the types of the vegetations and soil and the wetness was highlight as shown as the river color .