Center cropping

Center cropping References Reference NO 1 http://plantsci.missouri.edu/deltacrops/ Reference NO 2 http://graphicssoft.about.com/od/gimptutorials/a/crop-tool.htm Reference NO 3 http://stackoverflow.com/questions/13659192/center-cropping Reference NO 4 http://www.imagemagick.org/Usage/crop/ Reference NO 5 http://www.unl.edu/nac/alleycropping.htm Reference NO 6 #EANF# Reference NO 7 http://office.microsoft.com/en-us/excel-help/crop-a-picture-or-place-it-in-a-shape-HA102749423.aspx Reference NO 8 http://www.facebook.com/help/175123852542212