Using Vegetation Indices (NDVI, RVI, IPVI, and DVI) to Detect Physical and Chemical Parameters from Landsat-8(OLI) Image when Pixel Mixing Soil,Vegetation, and Water Journal title: Scholars Journal of Engineering and Technology Authors: Modher H. Abd, Dr. Mustafa T. Mustafa, Dr. Khalid I. Hassoon, Dr. Hussain M. Hussain Subject(s):