00388nas a2200133   4500000000100000000000100001008004100002260004100043100001600084700001800100700001800118700001800136245010000154       2007                            d  c27-30 June 2007 aMaribor, Slovenia 1 aNoura Saleh1 aHoda Boghdady1 aSamir Shaheen1 aAhmed Darwish00aAn Efficient Lossless Data Hiding Technique for Palette-Based Images with Capacity Optimization