ImagewatermarkingencryptiontechnologyistoconverttextinformationintocorrespondingbinaryinformationandwriteitintoBMPpictures.Forexample,ifthebinarycodeofatextis01001001,then0,1,0,0and1arewrittenintoeightpixelsofBMPpicturesrespectively,soastoachievethefunctionofhidinginformation.Fi